Across
- 3. motion of body when gravity is acting on body
- 6. Measure of gravitational force exerted on an object
- 8. All objects in the universe attract each other because of gravity
- 9. Friction between 2 moving surfaces
- 10. An action that can change the state of motion of an object
- 11. For every action there is an equal and opposite reaction
- 16. Overall force acting on an object
- 18. Force that requires touching
- 19. An object in motion stays in motion and an object in rest stays at rest unless acting upon by an outside force
- 20. Force of gravity, electromagnetic force, strong nuclear force, and weak nuclear force
Down
- 1. total amount of momentum in an isolated system is conserved
- 2. constant velocity of object when force of air resistance= magnitude and opposite to direction of force of gravity
- 4. When objects slide past one another
- 5. Force that does not require touching
- 7. Friction between 2 stationary surfaces
- 12. When an object rolls on a flat surface
- 13. A force that opposes motion between 2 contacting surfaces
- 14. f=ma
- 15. p=mv
- 17. To remain unchanged