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1. Which object can be attracted by a magnet?
A. book B. pad paper C. paper clips D. plastic cups
2. What characteristics do magnetic field have? They could ___________.
A. electrocute once touched
B. be black and cold to touch
C. push or pull objects when touched
D. fall faster than other objects when you drop them
3. What happens when two opposing poles of magnets are placed together?
They could ___________.
A. repel each other C. cancel each other out
B. attract each other D. double the strength of the magnet
4. Which of the following is used to measure the strength of electric current?
A. amperes B. battery C. galvanometer D. switch
5. Which object uses electricity to create a magnetic force?
A. circuit B. electricity C. electromagnets D. magnetism
6. Which is a device that uses electricity to make the object move?
A. electric motor B. galvanometer C. generator D. thermometer
7. Which of the following is an interaction between electricity and magnets?
A. electromagnets C. magnetic field
B. electromagnetism D. magnetic force
8. Which is an attraction or repulsion created by spinning electric charges?
A. electric generator C. solenoid
B. electromagnetism D. magnetic force
9. Why iron is suitable for the core of transformer?
A. a metal C. easily magnetized
B. will not get hot D. good conductor of heat
10. How to increase the strength of an electromagnet?
A. shorten the wires used
B. simply cut the coils of wires
C. increase the number of coils of wire
D. decrease the number of loops of wires
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