Across
- 2. - devices that open or close an electrical circuit when a magnetic field is near
- 4. - in comparison to something else
- 5. - a rotating part of an electric motor or generator
- 6. - usually or most of the time
- 8. - made to move or operate
- 10. - worries about how human activities affect nature
- 11. - a loop of wire used in electronic devices
- 12. - devices used to control electrical circuits
Down
- 1. - a small spool or cylinder for holding thread or wire
- 3. - a type of magnet that is created by electricity
- 7. - thin pieces of metal that touch each other to complete an electrical circuit
- 9. - particularly or more than usual
- 11. - damage caused by chemical reactions, especially on metal surfaces