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Physics

Give your kids a fun and simple way to learn and improve with our child friendly design. Our grade K-8 courses put practice first so they can quickly test their knowledge and develop their skills further. Browse one of our topics to see what you kids will experience.
  1. 1Scalars, Vectors and Motion
    1. 1.1Scalars, vectors, and one dimensional motion
    2. 1.2Vector operations in one dimension
    3. 1.3Vector operations in two dimensions
    4. 1.4Vector components
    5. 1.5Solving two dimensional vector problems
    6. 1.6Relative velocity
  2. 2Kinematics in One Dimension
    1. 2.1Define: Distance VS. displacement, speed VS. velocity, acceleration position, velocity, acceleration - time graphs
    2. 2.2Kinematic equations
  3. 3Kinematics in Two Dimensions
    1. 3.1Projectile motion
    2. 3.2Relative velocity
  4. 4Forces and Newton's Laws
    1. 4.1Newton's first law of motion
    2. 4.2Newton's second law of motion
    3. 4.3Multiple forces acting on an object
    4. 4.4Newton's third law of motion
    5. 4.5Friction: Static and kinetic
    6. 4.6Two dimensional forces
    7. 4.7Tension and pulley problems
  5. 5Circular Motion
    1. 5.1Horizontal circular motion
    2. 5.2Vertical circular motion
  6. 6Gravitation
    1. 6.1Gravitation, orbit, escape velocity
  7. 7Work and Energy
    1. 7.1Conservation of energy
    2. 7.2Work and energy
    3. 7.3Power and efficiency
  8. 8Momentum
    1. 8.1Momentum and motion
    2. 8.2Momentum and impulse
    3. 8.3Conservation of momentum in one dimension
    4. 8.4Conservation of momentum in two dimensions
    5. 8.5Elastic and inelastic collisions
  9. 9Equilibrium
    1. 9.1Translational equilibrium
    2. 9.2Rotational equilibrium
    3. 9.3Equilibrium problems
  10. 10Electrostatics
    1. 10.1Electric force
    2. 10.2Electric field
    3. 10.3Electric potential and electric potential energy
  11. 11Electric Circuits
    1. 11.1Voltage
    2. 11.2Current
    3. 11.3Resistance
    4. 11.4Ohm’s law
    5. 11.5Voltage divider method
    6. 11.6EMF and terminal voltage
    7. 11.7Power, energy and efficiency
    8. 11.8Circuitry problem solving
  12. 12Magnetism
    1. 12.1Magnets and magnetic fields 
    2. 12.2Electric currents produce magnetic fields
    3. 12.3Force on electric charge moving in a magnetic field 
    4. 12.4Magnetic field due to a long straight wire & force between two parallel wires
    5. 12.5Solenoids & electromagnets
  13. 13Electromagnetic Induction
    1. 13.1Induced EMF and Lenz’s law
    2. 13.2Faraday’s law
    3. 13.3Induced EMF in a moving conductor
    4. 13.4Electric generators & counter EMF (Back EMF)
    5. 13.5Transformers and power transmission
  14. 14Waves
    1. 14.1Introduction to waves
    2. 14.2Mechanical waves 
    3. 14.3Wave behavior at a boundary
    4. 14.4Superposition of waves 
    5. 14.5Waves in two dimensions
    6. 14.6Sound waves
  15. 15Light
    1. 15.1Fundamentals of light
    2. 15.2Light and matter
    3. 15.3Reflection of light
    4. 15.4Refraction of light and Snell's Law
    5. 15.5Application of reflected and refracted light
    6. 15.6Diffraction and interference of light
    7. 15.7Application of diffraction
  16. 16Special Relativity
    1. 16.1Postulate of the special theory of relativity, time dilation and twin paradox
    2. 16.2Length contraction & relativistic momentum, mass and energy
  17. 17Quantum Theory
    1. 17.1Waves behave like particles
  18. 18Simple Harmonic Motion (SHM)
    1. 18.1Vibration and energy
    2. 18.2The periodic nature of SHM and simple pendulum
  19. 19Rotational Motion
    1. 19.1Rotational Vs. translational kinematics
    2. 19.2Torque and rotational inertia 
    3. 19.3Rotational kinetic energy and angular momentum