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Electric Force And Field And Electromagnets
Test Description: A review of Electric force and field and Electromagnets
Instructions: Answer all questions to get your test result.
1) What is an electromagnet?
A
A magnetic force applied to magnetic objects
B
A magnet with a field around it
C
A magnet create by an electric current
D
Anything made of cobalt, nickel or lead
2) The strength of an electromagnet depends on:
A
Size, amount of coils
B
Amount of coils, voltage
C
Size, material
D
Voltage, material
3) An electric current can be created by:
A
Electricity
B
Batteries
C
Magnets
D
Flamin' Hot Cheetos
4) An electric generator is:
A
Something that uses electricity to power houses
B
A large mechanism that creates power
C
A magnetic chamber that creates waves
D
A device that uses magnets to create electric current
5) Virtually all the electricity we use is produced by:
A
Magnets
B
Turbines
C
Power Plants
D
Generators
6) Electric energy is also called:
A
Electricity
B
Force
C
Magnet
D
Electric Field
7) An invisible force created by an electrically charged particle
A
Electric Force
B
Magnetism
C
Electromagnet
D
Electric Field
8) Opposite charges:
A
Attract
B
Repel
9) Like charges:
A
Attract
B
Repel
10) Electric field lines never cross
A
False
B
True
*select an answer for all questions
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