Across
- 2. A push or pull applied over time that changes momentum.
- 6. When objects affect each other (push, pull, or collide).
- 9. A change in position; movement.
- 12. (of momentum) Momentum stays the same in a closed system.
- 13. The size or amount of something (the number value).
- 14. A quantity that has both size and direction.
- 17. The way something is moving or pointing.
- 18. (collision) A collision where objects bounce and kinetic energy is not lost.
- 19. When two objects are touching.
- 20. The amount of matter in an object.
Down
- 1. Speed in a specific direction.
- 3. To become different; in physics, a difference in motion or momentum.
- 4. The amount of motion an object has (mass × velocity).
- 5. When two objects hit each other.
- 7. To bounce back after hitting something.
- 8. (collision) A collision where objects stick together or lose kinetic energy.
- 10. How long something lasts or how long motion takes.
- 11. A push or a pull on an object.
- 15. When something moves from one object to another (like momentum).
- 16. A group of objects being studied together.