Across
- 4. The Italian astronomer who questioned the idea that a force is needed to keep an object moving.
- 6. An object in motion will stay in motion, an object at rest will stay at rest
- 8. The rate at which velocity changes
- 9. For every action, there is an equal and opposite ___________
- 13. Can cause an object to move, stop, or change direction - when a net force acts on an object
- 14. An object of greater ______ needs greater force in order to accelerate.
- 15. Form of energy an object has due to its motion
Down
- 1. Equal forces acting on one opposite in opposite directions
- 2. A push or pull
- 3. When the distance between two objects is changing
- 4. A force which pulls things down on earth
- 5. Physicist who came up with three laws of motion
- 7. The stored energy of an object
- 10. Speed in a given direction
- 11. Distance an object travels in one unit of time
- 12. The amount of matter an object has