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6. What is KE?
- Energy stored in an elastic object when work is done on the object
- Energy of a moving object dues to it's motion
- A force that changes the motion of an object
7. Momentum/P is ...
- Conserved whenever objects interact, provided no external forces act on them
- Speed in a given direction
- Energy of a moving object due to it's motion
8. Momentum is measured in kgm/s
9. How do you work out recoil velocity?
- Change in Momentum Divided by Time
- (mass A x velocity A)= -(mass B x velocity B)
- Mass x Velocity
10. when 2 objects move apart, do they move apart with equal and opposite momentum?
11. The more time an impact takes the less the force exerted
12. Force = Change in Momentum divided by Time