Across
- 2. In a closed system,the total momentum_____an event is equal to the total momentum after the event.
- 3. Collisions when colliding objects become tangled or coupled together is called__________
- 7. _____is defined as the product of mass and velocity
- 8. momentum s conserved in an_________such as occurs when a rifle is fired.
- 9. How much force does a golf ball have before it is hit by a golf club?
- 10. Collisions when objects collide without being permanently deformed and without generating heat,the collision is said to be _________
- 12. A bullet s shot from a gun.The bullet moves forward and the gun moves in the_______direction.
Down
- 1. in a collision,momentum is_____unless there are external forces acting on it
- 4. most collisions involve (internal or external) force?
- 5. the product of force and time?
- 6. if impulse stays the same and force decreased then_____increased.
- 11. in a collision,the total momentum of the bodies remains________
- 13. if impact time is longer,then a_____impact force results