1. Magnets stick to ________.
A. both magnets and iron C. other magnets
B. iron or iron alloys D. other plastics
2. Magnets have opposite poles, sometimes called north and south. When you put the north poles of two magnets together, the magnets will ___.
A. attract B. bend C. break D.crack
3. Which of the following is a magnetic rock?
A. basalt B. granite C. lodestone D. soapstone
4. Magnets have two ends, which are called __________.
A. electrical poles
B. east and west poles
C. north and south poles
D. positive and negative poles
5. A magnet is defined as anything that will _____________?
A. attract brass, copper, and aluminum
B. attract iron, steel, and certain other metals
C. cause and electrical circuit to function
D. repel iron, steel, and certain other metal
6. Magnets are used in all the following EXCEPT _______?
A.doorbells B. mechanical pencils C. refrigerators D. telephones
7. The Earth’s magnetic field is responsible for all but which of the following?
A. the movement of compass needles
B. the northern and southern lights
C. the rising and falling of the tides
D. the shielding of the Earth from solar winds
8. What is the effect when a magnet is placed near iron or steel? A. The magnet will lose some of its magnetism.
B. The objects will be attracted to the magnet.
C. The objects will be repelled by the magnet.
D. The objects will give off a magnetic spark.
9. A magnetic field is defined as what?
A. the space around a battery where magnetism acts
B. the space around a circuit where magnetism acts
C. the space around a generator where magnetism acts
D. the space around a magnet where magnetism acts
10.A magnet is strongest at ___________.
A. its back side C. its midsection
B. its front side D. its poles