Across
- 1. _____ fuels are non renewable
- 2. stored energy
- 4. sound waves move as these types of waves
- 7. the change in velocity over time
- 9. this pulls everything towards the surface of the Earth
- 12. the energy of motion
- 14. these are measured in Hertz
- 17. the distance between two crests
- 18. these waves have a very high frequency, short wavelength and are used to see cavities
- 19. these waves can pass through solids, liquids & gases
Down
- 1. the force when two objects push against each other
- 3. the wave moves at right angles to the energy
- 5. the low point of a wave
- 6. speed in a specific direction
- 8. the distance between the crest and the rest position
- 10. this happens when a wave hits an object it can not pass through
- 11. a volcano is an example of _____ energy
- 13. the law of _____ says that energy is not created or destroyed
- 15. the high point of a wave
- 16. the electromagnetic ______
