Across
- 5. — Rapid back-and-forth motion that produces sound (9)
- 6. — A way energy travels without matter moving overall (4)
- 8. — Done when a force causes displacement (4)
- 10. — Force acting per unit area (8)
- 13. — The bouncing back of light from a surface (10)
- 15. — Mass per unit volume of a substance (7)
- 16. — The tendency of an object to resist changes in its state (7)
- 17. — The change in position of an object over time (6)
- 19. — A device used to observe distant objects in space (9)
Down
- 1. — Force that pulls objects toward the Earth (7)
- 2. — The amount of matter in an object (4)
- 3. — Rate at which work is done (5)
- 4. — SI unit used to measure force (6)
- 7. — Energy possessed by a moving object (7)
- 9. — Force that always acts opposite to motion and produces heat (8)
- 10. — Energy stored due to position or height (9)
- 11. — Distance travelled per unit time (5)
- 12. — Force acting on an object due to gravity (6)
- 14. — A push or pull that can change motion (5)
- 18. — The speed of an object in a particular direction (8)