Across
- 2. often a particular event occurs.
- 6. is sound waves.
- 11. is light waves.
- 14. effect/A common name for the change in frequency of sound and light.
- 16. of no activity.
- 17. fast objects move.
- 18. space where there is no matter.
- 19. pushing force
- 20. path that must be taken to reach a specific place.
Down
- 1. pulling force.
- 3. of change of velocity.
- 4. of electromagnetism.
- 5. in which velocity decreases.
- 7. spatial period of a wave.
- 8. attractive force existing between any 2 particles of matter.
- 9. way we measure the rate in which an object changes position.
- 10. exerted on the mass of a body by a gravitational field.
- 12. to intensity of a sound.
- 13. influence that causes change in speed, direction or shape of an object.
- 15. measurement of force.