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