Magnetism Review Chapters 1 and 3

2007 - 2008

1. A naturally magnetic rock found at or near

Earth's surface is called a

A. compass B. lodestone C. maglev D. needle

2. Which of the following comparisons can you use to

best explain voltage?

A. Fire in a fireplaceB. Lemon juice in a canC. A compass needleD. Water in a garden hose

3. What produces most of the electricity you use in your home and school?

A. generatorsB. electromagnets C. solar cellsD. electric cells

4. What would you use if you had to separate steel

cans from aluminum cans?

A.transformerB. generatorC. electromagnetD. current detector

5. What is the pattern formed by iron filings

sprinkled around a bar magnet called?

A. lodestoneB. lines of force C. magnetic poles D. magnetic field

6. Which of the following would best meet the clean- air standards set by the Air

Quality Act ?

A. power plants burning fossil fuelsB. maglev trainsC. railroad trainsD. gasoline-powered cars

7. How is an electric current produced in a battery?

A. Chemical energy changes to electrical energyB. Energy of motion changes into electrical energyC. Electrical energy changes into chemical energyD. Chemical energy changes into energy of motion.

8. Electricity sets up a magnetic field around

________________

A.Electromagnets

B.Generators

C.Solar cells

D.Voltage

9. A compass needle points to Earth's magnetic south

pole.

A. TrueB. False

10. The north-seeking pole of a magnet is attracted to

Earth's magnetic north pole.

A. TrueB. False

11. A magnet's property of attracting materials such as

iron and steel is called

A .gravity B .electricity C .magnetismD .levitation

12. When you stroke a nail with a permanent magnet,

you magnetize the nail.

A. TrueB. False

13. When you move the north pole of one magnet close to the

north pole of another magnet, the two poles move closer together.

A. TrueB. False

14. A maglev train never touches the

A. PolesB. WiresC. RailsD. Loadstone

15. Earth's magnetic north pole is at the same spot as Earth's geographic north

pole.

A. TrueB. False

16. The space in which the force of a magnet can act is

called

A. compassB. line of force C. bar magnet D. magnetic field

17. Like poles of two magnets attract each other.

A. TrueB. False

18.The force that pushes electricity along wires is

___________________

A. Solar cellsB. VoltageC. Electric cellsD. Generators

19. Unlike poles of two magnets attract each other.

A. TrueB. False

20. An object that attracts or pulls on certain materials- mainly iron and steel, is

A. compass B. lodestone C. magnet D. pole

21. A battery is made up of two or more ________________

A.Solar cells

B.Voltage

C.Generators

D.Electric cells

22. What is a magnetized needle that is allowed to

swing freely?

A .a lodestone B. a magnetic field C .a temporary magnet D .a compass

23. _______________ change the Sun’s energy into electrical

energy.

A.Voltage

B.Electromagnets

C.Solar cells

D.generators

24. Earth is a giant magnet

A. TrueB. False

Answer Key1. B

2. D

3. A

4. C

5. B

6. B

7. A

8. A

9. B

10.A

11.C

12.A

13.B

14.C

15.B

16.D

17.B

18.B

19.A

20.C

21.D

22.D

23.C

24.A