Across
- 4. The "quantity of motion" in an object, a measure of how hard it is to stop or change its direction due to its mass and velocity
- 7. The force(s) acting on an object when it is not changing what it is doing
- 9. When an object gains speed
- 12. The force(s) acting on an object when it is changing what it is doing
- 14. The unit used to measure forces in physics
- 17. An object's speed AND direction
- 18. The restoring force exerted by a compressed or stretched spring
Down
- 1. When an object slows down
- 2. The theoretical coldest temperature possible when atoms stop moving
- 3. A scientist who specializes in physics
- 5. The force that pushes or pulls to return to its original shape (rubber band)
- 6. The energy present in an object when it is moving
- 8. When forces try to pull something apart, or stretch it
- 10. How much energy an object has "saved up" when it is not in motion
- 11. The smallest unit of matter that is still a distinct element
- 13. When two or more objects run into each other
- 15. When forces squeeze or force something together
- 16. How much "stuff" (matter/atoms) is packed into an object