Across
- 2. A push or pull acting on an object
- 3. When only the force of gravity is acting on a falling object
- 8. The tendency of an object to resist any change in motion
- 9. The combination of all forces acting on an object
- 11. The maximum velocity that a falling object can reach
- 12. In a _____, there is no air, so would be no air resistance
- 14. When one object is circling around another object, it is called _____
- 15. Newton's _____ Law is F=ma
- 16. Newton's _____ Law says that for every action, there is an equal and opposite reaction
- 19. Any change in position over time is an example of _____
- 20. This scientist wrote the Universal Law of Gravitation
- 21. The acceleration of an object depends on the _____ of the object, and the force applied
- 22. When the net force on an object is zero
Down
- 1. Change in an object's speed, direction, or both
- 3. Newton's _____ Law is the "Law of Inertia"
- 4. The amount of gravity between two objects is based on their mass and the _____ between them
- 5. A force of attraction between all objects in the universe
- 6. _____ forces cause an object to change its motion
- 7. The speed of an object in a particular direction is called
- 10. The friction of air molecules
- 13. A force that opposes motion
- 17. The SI unit for measuring force
- 18. All falling objects accelerate towards earth at a _____ rate of 9.8 m/s2