Download Magnetism guided reading

All about Magnetism!!
Name: ________________________
Chapter 18.1 Magnetism (use the information starting on page 619 to answer the following questions)
1. What are 4 everyday uses of magnets?
2. How did magnets get their name?
3. How are the behaviors of charges like the behavior of magnets?
4. What are magnetic poles?
5. What are the two poles of a magnet called?
6. Can the 2 poles of the magnet be separated? What happens if you cut a magnet apart?
7. What is a permanent magnet? Give an example.
8. How can a piece of iron become magnetized?
9. Even though a magnetized piece of iron is called a permanent magnet how is it different from
lodestones.
10. Compare the magnetic properties of iron to nickel?
11. How does magnet work to pick nails up out of a bucket?
12. What 2 forces play a role in whether the magnet will be able to pick up the nails?
13. What is the magnetic field?
14. Even though we can’t see the magnetic field, how can we tell that it exists?
15. Any magnetized material has a magnetic field, but are all magnetic fields the same? Explain.
16. How do magnetic domains affect the magnetic properties of a substance?
17. What are used to represent magnetic fields?
18. Where is the magnetic field the strongest?
19. Draw an example of a magnet showing the magnetic field lines.
20. What is something that we know about the earth’s magnetic field?
21. What is something that we do not know about the earth’s magnetic field?
22. How does a compass work?
Chapter 18.2 Magnetism from Electrical Currents (use the information starting on page 626 to answer the
following questions)
23. What observations suggested a relationship between electricity and magnetism?
24. How does a current affect a compass needle?
25. What is the “Right Hand Rule”?
26. When using the right hand rule, you should point your thumb in which direction?
27. When using the right hand rule, what do the direction of the fingers show you?
28. What is a solenoid?
29. List three ways you can create a stronger magnetic field?
30. What is an electromagnet?
31. What relationship does the number of loops in a wire in a solenoid have to the strength of a solenoid?
32. How do airports you magnetic fields to help with security?
33. What are 2 everyday devices the use magnetic fields produced by coils in current carrying wires?
34. What is an electric motor?
35. List two common household devices that use motors.
Chapter 18.3 Electric current from Magnetism (use information on starting on page 632 to answer the
following questions)
36. What is electromagnetic induction?
37. What is Faraday’s law?
38. What are generators?
39. What is an alternating current?
40. What must be done to produce a current using a generator?
41. What are three sources of mechanical energy used by power plants to produce electrical energy?
42. What is the electromagnetic force?
43. What are the other three fundamental forces? (review question)
44. Draw an electromagnetic waves consisting of the electric and magnetic fields.
45. What is a transformer?