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Science: Magnetism and Its Uses
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Science: Magnetism and Its Uses
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25 Questions

1. turbines

2. ______ use alternating current (AC)

3. opposite forces

4. all magnets have north and south ___________

5. magnetic pole

6. generators

7. simple electric motors

8. magnetic field

9. Two types of current

10. magnetic fields always point

11. magnetic domain

12. Electromagnets

13. shapes

14. electromagnetic induction

15. Why do scientists think the Earth is a giant magnet? likely produced by the iron and nickel of the Earth's ____________

16. Electromagnetism

17. Examples of _____________ metals iron, cobalt, nickel

18. Direct Current

19. magnetic field lines

20. Alternating Current

21. Magnetism

22. __________ use direct current (DC)

23. permanent magnet

24. Earth acts like a giant _________ magnet. Its poles switch over time.

25. Like forces