Across
- 3. the difference in the energy of electricity between two points
- 4. a connection where the electricity can only travel in one path
- 5. electricity (mostly) travelling from the sky to the earth
- 10. means not moving
- 11. another name for voltage
- 13. a device/object that provides energy
- 14. substance that does allow electricity to flow through it
- 18. what charges that are the same do to each other
- 19. a type of insulator
- 20. usually an excellent type of conductor
- 22. unit used to measure voltage
- 23. used to measure current
- 24. a device that changes electrical energy into other types of energy
Down
- 1. controls the flow of electricity in a circuit
- 2. the movement of electricity into or out of the Earth
- 6. substance that does not allow electricity to flow through it
- 7. used to measure voltage
- 8. protects an electric circuit against too much energy flowing through it
- 9. what opposite charges do
- 11. a connection where the electricity can travel through more than one path
- 12. type of energy stored in a battery
- 15. the flow of electrical energy
- 16. when the current in a circuit is greater than the circuit can handle
- 17. used to measure current
- 21. a 2nd type of insulator