Across
- 2. A charge that has more electrons than protons and has a lower electrical potential
- 3. A complete route that an electric current can flow around
- 8. To discover the facts about something
- 11. A circuit where the path has been interrupted at some point so that current will not flow.
- 12. To cause to move toward
- 13. A flow of charged particles, such as electrons or ions, moving through an electrical conductor or space
- 15. A substance that allows electricity or heat to pass along it or through it
- 17. A small device that you press or move up and down in order to turn a light or piece of electrical equipment on and off
- 18. To let somebody or something do something; to let something happen or be done
- 19. A very small piece of matter with a negative electric charge, found in all atoms
- 20. To force to move away
Down
- 1. Electricity that gathers on or in an object that is not a conductor of electricity
- 4. A force that stops something moving or makes it move more slowly
- 5. A material or device used to prevent heat, electricity, or sound from escaping from something
- 6. A charge that exists in a body that has more protons than electrons
- 7. To join together two or more things
- 9. A very small piece of matter with a positive electric charge that forms part of the nucleus of an atom
- 10. Any type of electrical or mechanical device that is capable of delivering an electrical load and a back-up power supply
- 14. A device that has resistance to an electric current in a circuit
- 16. The smallest particle of a chemical element that can exist