Across
- 4. Light waves bend when they enter a new medium
- 7. high pitched sound has high
- 9. Devices that display the output of computer
- 10. Transparent material
- 12. Used to connect computer to the internet
- 15. Light bounces back from a surface
Down
- 1. process of heat transfer through fluids
- 2. When light is blocked by an object
- 3. mirror that forms virtual image
- 5. Material that doesn’t allow light to pass through easily
- 6. device used to enter data
- 8. Unit of heat energy
- 11. Brain of the computer
- 13. Organ used for hearing
- 14. vibrating object produces it