Physics - KhanAcademy

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Select section General

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General

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Select section 1. Units & Measurement

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1. Units & Measurement
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  Significant figures
  
  Select activity Significant figures
  
  
  
  Significant figures Lesson
  
  Students must
  
  Mark as done
  
  Select activity More on significant figures
  
  
  
  More on significant figures Lesson
  
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  Select activity Multiplying and dividing with significant figures
  
  
  
  Multiplying and dividing with significant figures Lesson
  
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  Select activity Addition and subtraction with significant figures
  
  
  
  Addition and subtraction with significant figures Lesson
  
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  Select activity Scale of the large
  
  
  
  Scale of the large Lesson
  
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  Select activity Why do we need significant figures?
  
  
  
  Why do we need significant figures? Lesson
  
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  Select activity Rules for determining significant figures
  
  
  
  Rules for determining significant figures Lesson
  
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  Select activity Scientific notation examples
  
  
  
  Scientific notation examples Lesson
  
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  Select activity Express a small number in scientific notation (example)
  
  
  
  Express a small number in scientific notation (example) Lesson
  
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  Dimensions of physical quantities
  
  Select activity Fundamental and derived quantities
  
  Fundamental and derived quantities Lesson
  
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  Dimensional analysis and its applications
  
  Select activity 1st application of dimensional analysis
  
  1st application of dimensional analysis Lesson
  
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  Select activity Worked example: dimensional analysis
  
  Worked example: dimensional analysis Lesson
  
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Select section 2. Motion in a Straight Line

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2. Motion in a Straight Line
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  Instantaneous velocity and speed
  
  Select activity X-t graph when velocity is not constant
  
  
  
  X-t graph when velocity is not constant Lesson
  
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  Select activity Instantaneous speed and velocity
  
  
  
  Instantaneous speed and velocity Lesson
  
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  Select activity Position vs. time graphs
  
  
  
  Position vs. time graphs Lesson
  
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  Select activity Slope of the tangent gives us instantaneous velocity
  
  
  
  Slope of the tangent gives us instantaneous velocity Lesson
  
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  Select activity Worked example: on velocity and speed
  
  
  
  Worked example: on velocity and speed Lesson
  
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  Select activity Worked ex: direction of acceleration and velocity
  
  
  
  Worked ex: direction of acceleration and velocity Lesson
  
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  Acceleration
  
  Select activity Why distance is area under velocity-time line?
  
  
  
  Why distance is area under velocity-time line? Lesson
  
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  Select activity Acceleration
  
  
  
  Acceleration Lesson
  
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  Select activity Airbus a380 take-off time
  
  
  
  Airbus a380 take-off time Lesson
  
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  Select activity Acceleration vs. time graphs
  
  
  
  Acceleration vs. time graphs Lesson
  
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  Select activity Acceleration of aircraft carrier take-off
  
  
  
  Acceleration of aircraft carrier take-off Lesson
  
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  Select activity Airbus a380 take-off distance
  
  
  
  Airbus a380 take-off distance Lesson
  
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  Select activity Deriving displacement as a function of time, acceleration, and initial velocity
  
  
  
  Deriving displacement as a function of time, acceleration, and initial velocity Lesson
  
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  Select activity Area under a curved graph
  
  
  
  Area under a curved graph Lesson
  
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  Select activity Plotting projectile displacement, acceleration, and velocity
  
  
  
  Plotting projectile displacement, acceleration, and velocity Lesson
  
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  Select activity Projectile height given time
  
  
  
  Projectile height given time Lesson
  
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  Select activity Worked example: area below v-t graph
  
  
  
  Worked example: area below v-t graph Lesson
  
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  Select activity Worked example: effects of acceleration
  
  
  
  Worked example: effects of acceleration Lesson
  
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  Select activity Worked example: properties of distance and displacement
  
  
  
  Worked example: properties of distance and displacement Lesson
  
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  Kinematic equations for uniformly accelerated motion
  
  Select activity Choosing kinematic equations
  
  
  
  Choosing kinematic equations Lesson
  
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  Select activity Impact velocity from given height
  
  
  
  Impact velocity from given height Lesson
  
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  Select activity Calculating car's velocity using skid marks
  
  
  
  Calculating car's velocity using skid marks Lesson
  
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  Select activity Sign of gravity in free fall
  
  
  
  Sign of gravity in free fall Lesson
  
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  Select activity Worked example: motion problems (with definite integrals)
  
  
  
  Worked example: motion problems (with definite integrals) Lesson
  
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  Select activity Worked example: free fall, object thrown up from a building
  
  
  
  Worked example: free fall, object thrown up from a building Lesson
  
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Select section 3. Motion in a Plane

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3. Motion in a Plane
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  Scalars and vectors
  
  Select activity Intro to vectors & scalars
  
  
  
  Intro to vectors & scalars Lesson
  
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  Select activity Visualizing vectors in 2 dimensions
  
  
  
  Visualizing vectors in 2 dimensions Lesson
  
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  Select activity Worked ex: vector magnitude and direction
  
  
  
  Worked ex: vector magnitude and direction Lesson
  
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  Multiplication of vectors by real numbers
  
  Select activity Worked example: scalar multiplication of vectors
  
  Worked example: scalar multiplication of vectors Lesson
  
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  Addition and subtraction of vectors – graphical method
  
  Select activity Addition of vectors
  
  Addition of vectors Lesson
  
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  Resolution of vectors
  
  Select activity Unit vectors and engineering notation
  
  
  
  Unit vectors and engineering notation Lesson
  
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  Select activity Unit vector notation
  
  
  
  Unit vector notation Lesson
  
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  Select activity Unit vector notation (part 2)
  
  
  
  Unit vector notation (part 2) Lesson
  
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  Projectile motion
  
  Select activity Horizontally launched projectile
  
  
  
  Horizontally launched projectile Lesson
  
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  Select activity Projectile at an angle
  
  
  
  Projectile at an angle Lesson
  
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  Select activity Total displacement for projectile
  
  
  
  Total displacement for projectile Lesson
  
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  Select activity Total final velocity for projectile
  
  
  
  Total final velocity for projectile Lesson
  
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  Select activity Correction to total final velocity for projectile
  
  
  
  Correction to total final velocity for projectile Lesson
  
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  Select activity Projectile on an incline
  
  
  
  Projectile on an incline Lesson
  
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  Relative velocity in two dimensions
  
  Select activity Intro to relative velocity
  
  
  
  Intro to relative velocity Lesson
  
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  Select activity Calculating relative velocity
  
  
  
  Calculating relative velocity Lesson
  
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  Select activity Relative velocity in 2d
  
  
  
  Relative velocity in 2d Lesson
  
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  Motion in a plane
  
  Select activity Race cars with constant speed around curve
  
  Race cars with constant speed around curve Lesson
  
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  Motion in a plane with constant acceleration
  
  Select activity Intro to motion with constant acceleration
  
  Intro to motion with constant acceleration Lesson
  
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  Select activity Average velocity for constant acceleration
  
  Average velocity for constant acceleration Lesson
  
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  Uniform circular motion
  
  Select activity Angular velocity and speed
  
  
  
  Angular velocity and speed Lesson
  
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  Select activity Visual understanding of centripetal acceleration formula
  
  
  
  Visual understanding of centripetal acceleration formula Lesson
  
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  Select activity Distance or arc length from angular displacement
  
  
  
  Distance or arc length from angular displacement Lesson
  
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  Select activity Deriving formula for centripetal acceleration from angular velocity
  
  
  
  Deriving formula for centripetal acceleration from angular velocity Lesson
  
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  Select activity Calculus proof of centripetal acceleration formula
  
  
  
  Calculus proof of centripetal acceleration formula Lesson
  
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  Select activity How to solve a projectile motion problem?
  
  
  
  How to solve a projectile motion problem? Lesson
  
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  Select activity Radius comparison from velocity and angular velocity: worked example
  
  
  
  Radius comparison from velocity and angular velocity: worked example Lesson
  
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  Select activity Linear velocity comparison from radius and angular velocity: worked example
  
  
  
  Linear velocity comparison from radius and angular velocity: worked example Lesson
  
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  Select activity Change in period and frequency from change in angular velocity: worked examples
  
  
  
  Change in period and frequency from change in angular velocity: worked examples Lesson
  
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Select section 4. Laws of Motion

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4. Laws of Motion
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  Newton’s first law of motion
  
  Select activity Newton's first law of motion concepts
  
  Newton's first law of motion concepts Lesson
  
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  Select activity Newton's first law of motion
  
  Newton's first law of motion Lesson
  
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  Newton’s second law of motion
  
  Select activity Newton's second law of motion
  
  
  
  Newton's second law of motion Lesson
  
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  Select activity Introduction to momentum
  
  
  
  Introduction to momentum Lesson
  
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  Select activity Impulse and momentum dodgeball example
  
  
  
  Impulse and momentum dodgeball example Lesson
  
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  Select activity Bouncing fruit collision example
  
  
  
  Bouncing fruit collision example Lesson
  
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  Select activity Momentum: ice skater throws a ball
  
  
  
  Momentum: ice skater throws a ball Lesson
  
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  Select activity 2-dimensional momentum problem
  
  
  
  2-dimensional momentum problem Lesson
  
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  Select activity 2-dimensional momentum problem (part 2)
  
  
  
  2-dimensional momentum problem (part 2) Lesson
  
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  Select activity Change in momentum from force-time graphs
  
  
  
  Change in momentum from force-time graphs Lesson
  
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  Select activity Measuring the speed of a bullet using a block and a string
  
  
  
  Measuring the speed of a bullet using a block and a string Lesson
  
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  Newton’s third law of motion
  
  Select activity Newton's third law of motion
  
  
  
  Newton's third law of motion Lesson
  
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  Select activity More on newton's third law
  
  
  
  More on newton's third law Lesson
  
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  Select activity Example: analysing motion using newton's laws
  
  
  
  Example: analysing motion using newton's laws Lesson
  
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  Conservation of momentum
  
  Select activity Momentum conservation - solved example
  
  Momentum conservation - solved example Lesson
  
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  Select activity Momentum conservation derivation (2 bodies colliding)
  
  Momentum conservation derivation (2 bodies colliding) Lesson
  
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  Common forces in mechanics
  
  Select activity Force of friction keeping the block stationary
  
  
  
  Force of friction keeping the block stationary Lesson
  
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  Select activity Correction to force of friction keeping the block stationary
  
  
  
  Correction to force of friction keeping the block stationary Lesson
  
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  Select activity Force of friction keeping velocity constant
  
  
  
  Force of friction keeping velocity constant Lesson
  
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  Select activity Intuition on static and kinetic friction comparisons
  
  
  
  Intuition on static and kinetic friction comparisons Lesson
  
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  Select activity Static and kinetic friction example
  
  
  
  Static and kinetic friction example Lesson
  
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  Select activity Worked example: forces and motion
  
  
  
  Worked example: forces and motion Lesson
  
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  Circular motion
  
  Select activity Introduction to centripetal force
  
  
  
  Introduction to centripetal force Lesson
  
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  Select activity Identifying centripetal force for ball on string
  
  
  
  Identifying centripetal force for ball on string Lesson
  
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  Select activity Identifying centripetal force for cars and satellites
  
  
  
  Identifying centripetal force for cars and satellites Lesson
  
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  Select activity Centripetal force problem solving
  
  
  
  Centripetal force problem solving Lesson
  
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  Select activity Yo-yo in vertical circle example
  
  
  
  Yo-yo in vertical circle example Lesson
  
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  Select activity Bowling ball in vertical loop
  
  
  
  Bowling ball in vertical loop Lesson
  
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  Select activity Mass swinging in a horizontal circle
  
  
  
  Mass swinging in a horizontal circle Lesson
  
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  Select activity Is centripetal force a new type of force?
  
  
  
  Is centripetal force a new type of force? Lesson
  
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  Solving problems in mechanics
  
  Select activity Types of forces and free body diagrams
  
  
  
  Types of forces and free body diagrams Lesson
  
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  Select activity Breaking down forces for free body diagrams
  
  
  
  Breaking down forces for free body diagrams Lesson
  
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  Select activity Free body diagram with angled forces: worked example
  
  
  
  Free body diagram with angled forces: worked example Lesson
  
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  Select activity Worked example: tension in a rope
  
  
  
  Worked example: tension in a rope Lesson
  
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Select section 5. Work, Energy and Power

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5. Work, Energy and Power
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  Introduction
  
  Select activity The dot product
  
  The dot product Lesson
  
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  Work
  
  Select activity Work as area under curve
  
  Work as area under curve Lesson
  
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  Select activity Work example problems
  
  Work example problems Lesson
  
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  The work-energy theorem for a variable force
  
  Select activity Work and the work-energy principle
  
  Work and the work-energy principle Lesson
  
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  Work done by a variable force
  
  Select activity Work/energy problem with friction
  
  Work/energy problem with friction Lesson
  
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  Kinetic energy
  
  Select activity Example: calculating work and ke from graphs
  
  Example: calculating work and ke from graphs Lesson
  
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  The potential energy of a spring
  
  Select activity Intro to springs and hooke's law
  
  
  
  Intro to springs and hooke's law Lesson
  
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  Select activity Potential energy stored in a spring
  
  
  
  Potential energy stored in a spring Lesson
  
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  Select activity Spring potential energy example (mistake in math)
  
  
  
  Spring potential energy example (mistake in math) Lesson
  
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  Select activity Conservative forces
  
  
  
  Conservative forces Lesson
  
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  Conservation of mechanical energy
  
  Select activity Law of conservation of energy
  
  
  
  Law of conservation of energy Lesson
  
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  Select activity LOL diagrams
  
  
  
  LOL diagrams Lesson
  
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  Select activity Conservation of energy
  
  
  
  Conservation of energy Lesson
  
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  Select activity Work as the transfer of energy
  
  
  
  Work as the transfer of energy Lesson
  
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  Select activity Vertical springs and energy conservation
  
  
  
  Vertical springs and energy conservation Lesson
  
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  Select activity Worked example: conservation of energy
  
  
  
  Worked example: conservation of energy Lesson
  
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  Power
  
  Select activity Power
  
  Power Lesson
  
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  Collisions
  
  Select activity Elastic and inelastic collisions
  
  
  
  Elastic and inelastic collisions Lesson
  
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  Select activity Solving elastic collision problems the hard way
  
  
  
  Solving elastic collision problems the hard way Lesson
  
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  Select activity Deriving the shortcut to solve elastic collision problems
  
  
  
  Deriving the shortcut to solve elastic collision problems Lesson
  
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  Select activity How to use the shortcut for solving elastic collisions
  
  
  
  How to use the shortcut for solving elastic collisions Lesson
  
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  Select activity What if humans could jump like fleas?
  
  
  
  What if humans could jump like fleas? Lesson
  
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Select section 6. Systems of Particles and Rotational Motion

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6. Systems of Particles and Rotational Motion
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  Centre of mass
  
  Select activity Center of mass
  
  Center of mass Lesson
  
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  Select activity Center of mass equation
  
  Center of mass equation Lesson
  
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  Vector product of two vectors
  
  Select activity Cross product 1
  
  
  
  Cross product 1 Lesson
  
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  Select activity Cross product 2
  
  
  
  Cross product 2 Lesson
  
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  Select activity Cross product and torque
  
  
  
  Cross product and torque Lesson
  
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  Angular velocity and its relation with linear velocity
  
  Select activity Relating angular and regular motion variables
  
  Relating angular and regular motion variables Lesson
  
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  Select activity Angular motion variables
  
  Angular motion variables Lesson
  
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  Torque and angular momentum
  
  Select activity Introduction to torque
  
  
  
  Introduction to torque Lesson
  
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  Select activity Moments
  
  
  
  Moments Lesson
  
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  Select activity Moments (part 2)
  
  
  
  Moments (part 2) Lesson
  
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  Select activity Conservation of angular momentum
  
  
  
  Conservation of angular momentum Lesson
  
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  Select activity Finding torque for angled forces
  
  
  
  Finding torque for angled forces Lesson
  
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  Select activity Constant angular momentum when no net torque
  
  
  
  Constant angular momentum when no net torque Lesson
  
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  Select activity Ball hits rod angular momentum example
  
  
  
  Ball hits rod angular momentum example Lesson
  
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  Select activity Worked example: angular impulse
  
  
  
  Worked example: angular impulse Lesson
  
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  Kinematics of rotational motion about a fixed axis
  
  Select activity Rotational kinematic formulas
  
  Rotational kinematic formulas Lesson
  
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  Select activity Worked example: torque and angular acc.
  
  Worked example: torque and angular acc. Lesson
  
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  Moment of inertia
  
  Select activity Rotational kinetic energy
  
  
  
  Rotational kinetic energy Lesson
  
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  Select activity Rotational version of newton's second law
  
  
  
  Rotational version of newton's second law Lesson
  
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  Select activity More on moment of inertia
  
  
  
  More on moment of inertia Lesson
  
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  Angular momentum in case of rotations about a fixed axis
  
  Select activity Angular momentum
  
  
  
  Angular momentum Lesson
  
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  Select activity Angular momentum of an extended object
  
  
  
  Angular momentum of an extended object Lesson
  
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  Select activity Worked example: conservation of angular momentum
  
  
  
  Worked example: conservation of angular momentum Lesson
  
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  Rolling motion
  
  Select activity Rolling without slipping problems
  
  Rolling without slipping problems Lesson
  
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Select section 7. Gravitation

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7. Gravitation
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  Kepler’s laws
  
  Select activity Orbital motion
  
  Orbital motion Lesson
  
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  Universal law of gravitation
  
  Select activity Introduction to gravity
  
  Introduction to gravity Lesson
  
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  The gravitational constant
  
  Select activity Mass and weight clarification
  
  Mass and weight clarification Lesson
  
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  Acceleration due to gravity below and above the surface of earth
  
  Select activity Acceleration due to gravity at the space station
  
  Acceleration due to gravity at the space station Lesson
  
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  Select activity Viewing g as the value of earth's gravitational field near the surface
  
  Viewing g as the value of earth's gravitational field near the surface Lesson
  
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  Energy of an orbiting satellite
  
  Select activity Space station speed in orbit
  
  
  
  Space station speed in orbit Lesson
  
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  Select activity Impact of mass on orbital speed
  
  
  
  Impact of mass on orbital speed Lesson
  
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  Select activity Gravity for astronauts in orbit
  
  
  
  Gravity for astronauts in orbit Lesson
  
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  Gravitational potential energy
  
  Select activity Gravitational potential energy at large distances
  
  Gravitational potential energy at large distances Lesson
  
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  Select activity Worked example: gravitational potential energy of a system
  
  Worked example: gravitational potential energy of a system Lesson
  
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  Escape speed
  
  Select activity Would a brick or feather fall faster?
  
  Would a brick or feather fall faster? Lesson
  
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Select section 8. Mechanical Properties of Solids

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8. Mechanical Properties of Solids
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  Introduction
  
  Select activity Elastic and non elastic materials
  
  Elastic and non elastic materials Lesson
  
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  Stress and strain
  
  Select activity Stress & strain
  
  
  
  Stress & strain Lesson
  
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  Select activity Shear stress and strain
  
  
  
  Shear stress and strain Lesson
  
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  Select activity Strain example problem
  
  
  
  Strain example problem Lesson
  
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  Select activity Femur bone example problem
  
  
  
  Femur bone example problem Lesson
  
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  Stress-strain curve
  
  Select activity Stress vs strain curve
  
  Stress vs strain curve Lesson
  
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  Elastic moduli
  
  Select activity Young's modulus of elasticity
  
  
  
  Young's modulus of elasticity Lesson
  
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  Select activity Shear modulus
  
  
  
  Shear modulus Lesson
  
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  Select activity Bulk stress
  
  
  
  Bulk stress Lesson
  
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  Select activity Solved example: pressure needed to compress water
  
  
  
  Solved example: pressure needed to compress water Lesson
  
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  Select activity Solved example: percentage change in density
  
  
  
  Solved example: percentage change in density Lesson
  
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  Applications of elastic behaviour of materials
  
  Select activity Why use i beams in construction?
  
  
  
  Why use i beams in construction? Lesson
  
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  Select activity How to strengthen concrete?
  
  
  
  How to strengthen concrete? Lesson
  
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  Select activity How tall can mountains get?
  
  
  
  How tall can mountains get? Lesson
  
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Select section 9. Mechanical Properties of Fluids

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9. Mechanical Properties of Fluids
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  Pressure
  
  Select activity Pressure and pascal's principle (part 1)
  
  
  
  Pressure and pascal's principle (part 1) Lesson
  
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  Select activity Pressure and pascal's principle (part 2)
  
  
  
  Pressure and pascal's principle (part 2) Lesson
  
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  Select activity Pressure at a depth in a fluid
  
  
  
  Pressure at a depth in a fluid Lesson
  
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  Select activity Finding height of fluid in a barometer
  
  
  
  Finding height of fluid in a barometer Lesson
  
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  Select activity Worked example: pressure due to fluid
  
  
  
  Worked example: pressure due to fluid Lesson
  
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  Select activity Worked example: excess pressure in a drop
  
  
  
  Worked example: excess pressure in a drop Lesson
  
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  Streamline flow
  
  Select activity Volume flow rate and equation of continuity
  
  Volume flow rate and equation of continuity Lesson
  
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  Select activity Worked example: continuity equation
  
  Worked example: continuity equation Lesson
  
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  Bernoulli’s principle
  
  Select activity Bernoulli's equation (part 1)
  
  
  
  Bernoulli's equation (part 1) Lesson
  
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  Select activity Bernoulli's equation (part 2)
  
  
  
  Bernoulli's equation (part 2) Lesson
  
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  Select activity Bernoulli's equation (part 3)
  
  
  
  Bernoulli's equation (part 3) Lesson
  
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  Select activity Bernoulli's equation (part 4)
  
  
  
  Bernoulli's equation (part 4) Lesson
  
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  Select activity Bernoulli's example problem
  
  
  
  Bernoulli's example problem Lesson
  
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  Select activity Venturi effect and pitot tubes
  
  
  
  Venturi effect and pitot tubes Lesson
  
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  Viscosity
  
  Select activity Viscosity and poiseuille flow
  
  Viscosity and poiseuille flow Lesson
  
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  Reynolds number
  
  Select activity Turbulence at high velocities and reynold's number
  
  Turbulence at high velocities and reynold's number Lesson
  
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  Surface tension
  
  Select activity Surface tension and adhesion
  
  
  
  Surface tension and adhesion Lesson
  
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  Select activity Specific gravity
  
  
  
  Specific gravity Lesson
  
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  Select activity Capillary action and why we see a meniscus
  
  
  
  Capillary action and why we see a meniscus Lesson
  
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  Select activity Worked example: surface tension and energy
  
  
  
  Worked example: surface tension and energy Lesson
  
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Select section 10. Thermal Properties of Matter

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10. Thermal Properties of Matter
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  Temperature and heat
  
  Select activity Thermal energy, temperature, and heat
  
  Thermal energy, temperature, and heat Lesson
  
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  Ideal-gas equation and absolute temperature
  
  Select activity Thermodynamics part 2: ideal gas law
  
  
  
  Thermodynamics part 2: ideal gas law Lesson
  
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  Select activity Thermodynamics part 3: kelvin scale and ideal gas law example
  
  
  
  Thermodynamics part 3: kelvin scale and ideal gas law example Lesson
  
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  Select activity Absolute temperature and the kelvin scale
  
  
  
  Absolute temperature and the kelvin scale Lesson
  
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  Thermal expansion
  
  Select activity Intro to thermal expansion
  
  
  
  Intro to thermal expansion Lesson
  
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  Select activity Linear expansion
  
  
  
  Linear expansion Lesson
  
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  Select activity Linear expansion numerical
  
  
  
  Linear expansion numerical Lesson
  
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  Select activity Thermal expansion of ring
  
  
  
  Thermal expansion of ring Lesson
  
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  Select activity Area expansion coefficient
  
  
  
  Area expansion coefficient Lesson
  
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  Select activity Volume expansion coefficient
  
  
  
  Volume expansion coefficient Lesson
  
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  Select activity Volume expansion numerical
  
  
  
  Volume expansion numerical Lesson
  
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  Select activity Thermal expansion in liquids
  
  
  
  Thermal expansion in liquids Lesson
  
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  Select activity Thermal expansion in gas
  
  
  
  Thermal expansion in gas Lesson
  
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  Select activity Anomalous expansion of water
  
  
  
  Anomalous expansion of water Lesson
  
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  Select activity Thermal stress
  
  
  
  Thermal stress Lesson
  
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  Heat transfer
  
  Select activity Thermal conduction, convection, and radiation
  
  
  
  Thermal conduction, convection, and radiation Lesson
  
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  Select activity Thermal conduction
  
  
  
  Thermal conduction Lesson
  
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  Select activity Thermal conductivity of metal and wood
  
  
  
  Thermal conductivity of metal and wood Lesson
  
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  Select activity Intuition behind formula for thermal conductivity
  
  
  
  Intuition behind formula for thermal conductivity Lesson
  
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  Select activity Example: equivalent thermal conductivity
  
  
  
  Example: equivalent thermal conductivity Lesson
  
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  Change of state
  
  Select activity Specific heat and latent leat of fusion and vaporization
  
  Specific heat and latent leat of fusion and vaporization Lesson
  
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  Specific heat capacity
  
  Select activity Thermodynamics part 4: moles and the ideal gas law
  
  Thermodynamics part 4: moles and the ideal gas law Lesson
  
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  Select activity Thermodynamics part 5: molar ideal gas law problem
  
  Thermodynamics part 5: molar ideal gas law problem Lesson
  
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  Newton’s law of cooling
  
  Select activity Newton's law of cooling
  
  Newton's law of cooling Lesson
  
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  Select activity Applying newton's law of cooling to warm oatmeal
  
  Applying newton's law of cooling to warm oatmeal Lesson
  
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Select section 11. Thermodynamics

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11. Thermodynamics
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  Heat, internal energy and work
  
  Select activity More on internal energy
  
  
  
  More on internal energy Lesson
  
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  Select activity Work from expansion
  
  
  
  Work from expansion Lesson
  
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  Select activity Pv-diagrams and expansion work
  
  
  
  Pv-diagrams and expansion work Lesson
  
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  Select activity Worked example: internal energy
  
  
  
  Worked example: internal energy Lesson
  
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  Select activity Example: sign of work, heat and internal energy
  
  
  
  Example: sign of work, heat and internal energy Lesson
  
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  First law of thermodynamics
  
  Select activity First law of thermodynamics / internal energy
  
  
  
  First law of thermodynamics / internal energy Lesson
  
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  Select activity Worked example: first law of thermodynamics
  
  
  
  Worked example: first law of thermodynamics Lesson
  
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  Select activity Worked example: first law of thermo - cyclic processes
  
  
  
  Worked example: first law of thermo - cyclic processes Lesson
  
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  Specific heat capacity
  
  Select activity Heat capacity at constant volume and pressure
  
  
  
  Heat capacity at constant volume and pressure Lesson
  
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  Select activity Proof: u = (3/2)pv or u = (3/2)nrt
  
  
  
  Proof: u = (3/2)pv or u = (3/2)nrt Lesson
  
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  Select activity Worked example: work from pv diagram
  
  
  
  Worked example: work from pv diagram Lesson
  
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  Thermodynamic state variables and equation of state
  
  Select activity Macrostates and microstates
  
  Macrostates and microstates Lesson
  
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  Thermodynamic processes
  
  Select activity Quasistatic and reversible processes
  
  Quasistatic and reversible processes Lesson
  
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  Select activity Work done by isothermic process
  
  Work done by isothermic process Lesson
  
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  Carnot engine
  
  Select activity Carnot cycle and carnot engine
  
  
  
  Carnot cycle and carnot engine Lesson
  
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  Select activity Proof: volume ratios in a carnot cycle
  
  
  
  Proof: volume ratios in a carnot cycle Lesson
  
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  Select activity Efficiency of a carnot engine
  
  
  
  Efficiency of a carnot engine Lesson
  
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  Select activity Carnot efficiency 2: reversing the cycle
  
  
  
  Carnot efficiency 2: reversing the cycle Lesson
  
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  Select activity Carnot efficiency 3: proving that it is the most efficient
  
  
  
  Carnot efficiency 3: proving that it is the most efficient Lesson
  
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  Select activity Worked example: carnot engine
  
  
  
  Worked example: carnot engine Lesson
  
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Select section 12. Kinetic Theory

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12. Kinetic Theory
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  Behaviour of gases
  
  Select activity Boyle's law
  
  
  
  Boyle's law Lesson
  
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  Select activity Charles's law
  
  
  
  Charles's law Lesson
  
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  Select activity Avogadro's law
  
  
  
  Avogadro's law Lesson
  
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  Select activity Ideal gas equation: pv = nrt
  
  
  
  Ideal gas equation: pv = nrt Lesson
  
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  Select activity Introduction to partial pressure
  
  
  
  Introduction to partial pressure Lesson
  
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  Select activity Partial pressure example
  
  
  
  Partial pressure example Lesson
  
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  Select activity Ideal gas equation example 2
  
  
  
  Ideal gas equation example 2 Lesson
  
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  Select activity Ideal gas equation example 4
  
  
  
  Ideal gas equation example 4 Lesson
  
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  Kinetic theory of an ideal gas
  
  Select activity Kinetic molecular theory of gases
  
  
  
  Kinetic molecular theory of gases Lesson
  
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  Select activity The maxwell–boltzmann distribution
  
  
  
  The maxwell–boltzmann distribution Lesson
  
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  Select activity Boltzmann's constant
  
  
  
  Boltzmann's constant Lesson
  
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  Select activity Worked example:rms speed and average ke of gas molecules
  
  
  
  Worked example:rms speed and average ke of gas molecules Lesson
  
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Select section 13. Oscillations

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13. Oscillations
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  Periodic and oscilatory motions
  
  Select activity Definition of amplitude and period
  
  Definition of amplitude and period Lesson
  
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  Select activity Worked example: find frequency & period from displacement-time graph
  
  Worked example: find frequency & period from displacement-time graph Lesson
  
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  Simple harmonic motion
  
  Select activity Introduction to harmonic motion
  
  
  
  Introduction to harmonic motion Lesson
  
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  Select activity Harmonic motion part 2 (calculus)
  
  
  
  Harmonic motion part 2 (calculus) Lesson
  
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  Select activity Harmonic motion part 3 (no calculus)
  
  
  
  Harmonic motion part 3 (no calculus) Lesson
  
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  Select activity Phase constant
  
  
  
  Phase constant Lesson
  
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  Select activity Worked example: find velocity from displacement time graph
  
  
  
  Worked example: find velocity from displacement time graph Lesson
  
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  Simple harmonic motion and uniform circular motion
  
  Select activity Equation for simple harmonic oscillators
  
  Equation for simple harmonic oscillators Lesson
  
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  Force law for simple harmonic motion
  
  Select activity Period dependence for mass on spring
  
  
  
  Period dependence for mass on spring Lesson
  
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  Select activity Intuition about simple harmonic oscillators
  
  
  
  Intuition about simple harmonic oscillators Lesson
  
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  Select activity Example: analysing graphs of spring-mass system
  
  
  
  Example: analysing graphs of spring-mass system Lesson
  
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  Energy in simple harmonic motion
  
  Select activity Energy graphs for simple harmonic motion
  
  Energy graphs for simple harmonic motion Lesson
  
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  Select activity Worked example: energy in a simple harmonic motion
  
  Worked example: energy in a simple harmonic motion Lesson
  
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  The simple pendulum
  
  Select activity Pendulums | oscillations and mechanical waves
  
  Pendulums | oscillations and mechanical waves Lesson
  
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Select section 14. Waves

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14. Waves
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  Transverse and longitudinal waves
  
  Select activity Introduction to waves
  
  Introduction to waves Lesson
  
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  Select activity Production of sound
  
  Production of sound Lesson
  
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  Displacement relation in a progressive wave
  
  Select activity Amplitude, period, frequency and wavelength of periodic waves
  
  Amplitude, period, frequency and wavelength of periodic waves Lesson
  
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  Select activity The equation of a wave
  
  The equation of a wave Lesson
  
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  The principle of superposition of waves
  
  Select activity Wave interference
  
  
  
  Wave interference Lesson
  
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  Select activity Constructive and destructive interference
  
  
  
  Constructive and destructive interference Lesson
  
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  Select activity Sound properties (amplitude, period, frequency, wavelength)
  
  
  
  Sound properties (amplitude, period, frequency, wavelength) Lesson
  
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  Select activity Example: frequency and amplitude from graphs
  
  
  
  Example: frequency and amplitude from graphs Lesson
  
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  Reflection of waves
  
  Select activity Standing waves on strings
  
  
  
  Standing waves on strings Lesson
  
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  Select activity Standing waves in open tubes
  
  
  
  Standing waves in open tubes Lesson
  
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  Select activity Standing waves in closed tubes
  
  
  
  Standing waves in closed tubes Lesson
  
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  The speed of a travelling wave
  
  Select activity Speed of sound
  
  Speed of sound Lesson
  
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  Select activity Relative speed of sound in solids, liquids, and gases
  
  Relative speed of sound in solids, liquids, and gases Lesson
  
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  Beats
  
  Select activity Beat frequency
  
  Beat frequency Lesson
  
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  Select activity Derivation of beat frequency formula
  
  Derivation of beat frequency formula Lesson
  
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