Across
- 2. Protectes electrical divices?
- 4. What is it called when all the light rays are reflected in the same direction?
- 8. What is any substance containing free ions that make the substance electrically conductive?
- 10. If the metal is magnetised all of the what will be facing the same way?
- 11. What is it called when there is a large light source and there is a larger, lighter shadow surrounding the umbra?
- 12. What is the 90° plane about which light is refracted?
- 13. In a magnet no longer attracts a certain metal it is therefore out of the what?
- 15. For electricity to flow you need to have a complete what?
- 17. What flows round a circuit?
- 19. What type of force can we see when we bring a certain metals close to the magnet?
- 20. What happens when a North and South pole meet?
- 22. What happens when two North poles on a magnet meet each other?
Down
- 1. What circuit is one where it flows round in s circle?
- 2. What causes an object to change shape, speed or direction?
- 3. What is measured using volts?
- 5. What is made by passing an electrical current through a coil of wire?
- 6. What is the shadow behind a small object called when there is a small light source?
- 7. What pressure is created by gas particles moving and hitting things?
- 9. What objects produce white light?
- 14. What name is given to the ray which the light is coming from?
- 16. ________= Force ÷ Surface Area?
- 18. What circuit is one where it is one on top of the other?
- 21. What do we call the flow of electrons?