Across
- 2. Electron Metals are good conductors because they contain these particles
- 5. The height of a wave crest or a wave trough of a transverse wave from the rest position
- 7. Changing the frequency of a sound will change the ________ of the sound
- 9. The form of heat transfer that occurs in liquids and gases
- 10. The part of the electromagnetic spectrum with the longest wavelength
- 13. An object that does not conduct heat very well
- 15. The phenomenon that makes the siren on an ambulance change pitch as it moves past you
- 17. The form of heat transfer that is a wave and can travel through a vacuum
- 19. The change of direction of a ray of light when it passes across a boundary from one transparent material to another
Down
- 1. The percentage of the energy a device uses that is useful
- 3. A black object is a good _______ of radiation
- 4. Energy generated using heat from rocks underground
- 6. This part of the electromagnetic spectrum is used for mobile phone signals
- 8. The theory that the universe was created in a massive explosion
- 11. The process when a gas turns into a liquid
- 12. The unit of energy
- 14. The form of heat transfer that occurs in solids
- 16. The process by which a liquid turns into a vapour
- 18. The unit of power