Physics - Chapter 7 Momentum Terms & Objectives     BHS -> Mr. Stanbrough -> Physics -> Mechanics -> Momentum -> this page

Note: The following terms and objectives are based on the Indiana Standards 2000 for Physics 1. You may download the complete physics standards by clicking here, or view the standards relevant to Chapter 7 - Momentum here.

New Terms in Chapter 7:

 momentum impulse change in momentum conservation of momentum collision conserve elastic collision inelastic collision deformation

Chapter 7 Objectives:

When you have completed chapter 7, you should be able to:

1. ... solve problems involving the impulse on an object, the forces acting on it, and the time in which they act.
2. ... solve problems involving the momentum of an object, its mass, and its velocity.
3. ... recognize that impulse and momentum are vector quantities.
4. ... give real-life examples of how force and time interact to change the momentum of an object.
5. ... use the impulse-momentum equation to solve numeric problems.
6. ... explain why a greater impulse acts on an object that bounces during a collision as opposed to an object that simply comes to a stop, and explain what effect this extra impulse has on the object.
7. ... state the Law of Conservation of Momentum.
8. ... distinguish between elastic and inelastic collisions.
9. ... use the Law of Conservation of Momentum to calculate the velocity of objects undergoing a simple inelastic collision or an explosion.
10. ... apply the Law of Conservation of Momentum conceptually to real-life situations such as throwing a ball or the motion of a rocket.

Possible Misconceptions to Correct:

Do you believe that any of the following statements are true? They AREN'T! When you finish Chapter 7, you should understand that each of these statements is FALSE, and WHY.

• WRONG: The momentum of an object decreases by itself. (Objects "lose momentum".)
• WRONG: Impulse = Momentum
• WRONG: Momentum is conserved only when collisions are perfectly elastic.
• WRONG: Impact and Impulse are the same.
• WRONG: When 2 objects collide and stick together, the impact force is distributed over the entire time they are stuck together.     last update June 5, 2008 by JL Stanbrough