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Honors Physics
Review Chapter 36,37
1.
2.
3.
4.
What is the source of all magnetism?
What phenomenon are around all moving charges?
What are all the possible interactions between the poles of magnets?
What is a fundamental difference between positive and negative charges and
north and south poles?
5. What happens to a compass placed in a magnetic field?
6. Describe the strength of a magnetic field around a magnet?
7. What are magnetic domains?
8. What does the magnetic field look like around a wire? What happens when the
wire is bent?
9. What materials are needed for an electromagnet?
10. How do the magnetic poles of earth compare to the geographic poles? Where are
they located approximately?
11. What causes the earth to have its magnetic field?
12. What is the difference between geographic north and a compass reading called?
13. What direction do the field lines “move” in a magnet?
14. Describe what happen to a wire placed in a magnetic field when current passes
through the wire in both directions.
15. What is necessary to induce a current in a wire with a magnet?
16. How is the number of coils related to the induced voltage?
17. Define the title of Chapter 37.
18. How can the field strength of a coil of wire be increased? (There is more than one
way)
19. How are motors and generator similar and different?
20. How can the current in a coil of wire be increased? (There is more than one way)
21. What are the most common ways to rotate a generator and which method is the
most common?
22. What is the primary purpose of a transformer?
23. What is the difference between a step-up and a step-down transformer?
24. Be able to use the transformer equation and the power equation to find number of
turns, voltages, current, and power.