Across
- 5. Only allows current to flow in one direction.
- 6. The 7 colours of visible light form a ...
- 8. Used to measure current.
- 10. Used to measure voltage.
- 12. This colour has the longest wavelength.
- 13. current x resistance
- 15. These waves can be used for cooking food or communications.
- 16. A line at 90 degrees to a surface.
- 18. ............... Potential Energy is stored in raised objects.
- 21. These waves can be used in TV remotes or night vision cameras.
- 22. This colour has the highest frequency.
Down
- 1. These waves can be used to detect broken bones.
- 2. Electromagnetic waves are the only waves which can travel through this.
- 3. energy divided by time
- 4. The unit of energy.
- 7. The resistance of this component decreases with temperature.
- 9. A wave whose oscillations are perpendicular to the direction of motion.
- 11. Unit of resistance.
- 12. The change of direction of a wave when it passes from one medium to another.
- 14. Force x distance
- 17. .............. energy is stored in moving objects.
- 19. The resistance of this component decreases with light intensity.
- 20. The resistance of this component increases with temperature.