Magnetism

5. refers to the properties and interactions of magnets
7. excerpt a force on another magnets and objects made of magnetic materials
9. groups of atoms with aligned magnetic poles
11. magnets can be ___ or artificial
12. objects that can pull particular materials that have metallic properties
16. changes direction in regular intervals
18. magnets have ___
20. earth's 2 poles are north pole and ___
21. property of magnets
22. core with multiple cells wrapped around it
23. connects with brushed to from closer circuits
24. attract
26. earth is a huge ___

1. conducting pads that are connected to a power source
2. south pole + south pole
3. flows only in one direction through a wire
4. a magnet that is free to rotate and points North
6. using electromagnetic induction to change mechanical energy to electric energy
8. large wheels pushed by water, steam or wind
10. a wire coil (electromagnet)
13. the needed of the compass lines up with the _____ pole.
14. when domains ___ they act like a magnet.
15. the area where magnetic forces are the strongest
17. when you change the direction of the ___ , magnetic fields also change
19. temporary magnet created by wrapping a wire around a core
25. the attraction of a magnet on an item