Ballistas, Work, and Energy

1. a falling body loses gravitational potential and _______ kinetic energy
3. mass by acceleration
4. doubling the velocity _________ the kinetic energy
5. half by mass by velocity squared (2wds)
6. work cannot be done without __________
8. meters per second squared
9. defines force
10. tripling the displacement __________ the elastic potential energy
11. kinetic energy is energy of
12. potential energy is energy of
13. gravitational potential, elastic potential and kinetic energy are classified as __________ energy
15. force by displacement
17. half by spring constant by displacement squared (3wds)
19. lifting an object ________ its gravitational potential energy
20. unit representing work and energy

1. mass by free fall acceleration by height (3wds)
2. when launching a projectile in a ballista the elastic potential __________
6. ______ by g(freefall acceleration=9.81m/s2) is weight
7. gravitational potential energy is also ________ by height
11. in a mathematical sense, by means
14. meters per second
16. doubling the mass ________ gravitational potential energy
18. a ballista projectile has maximum gravitational energy when at the ________ of its path