We’ve talked in some depth now about motion, specifically trying to relate what we know about motion back to kinetic energy. Recall our definition of kinetic energy:

Kinetic Energy -- the ability or capacity of a moving object to move another object.

And the key characteristics of kinetic energy, mass and velocity, which can be observed from the equation: KE-Eqn.

But, there’s more to the story. We’ve talked about moving objects causing other objects to move, but we really haven’t looked at those situations yet -- to do so we need to talk about collisions, and collisions are all about momentum.


  1. Define and calculate the momentum of an object.
  2. Determine the impulse given to an object.
  3. Use impulse to solve a variety of problems.
  4. Interpret and use force vs. time graphs.
  5. Apply conservation of momentum to solve a variety of problems.
  6. Distinguish between elastic and inelastic collisions.
  7. Calculate the center of mass for a system of point particles.

Topics of Study

  1. Momentum & Impulse
  2. Conservation of Momentum
  3. Types of Collisions
  4. Center of Mass


Video Tutorials

  1. Momentum & Impulse
  2. Impulse-Momentum Theorem
  3. Conservation of Momentum