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4.3 Electricity Test - Part 1
Test Description: VA SOL 4.3 - Part 1
Instructions: Answer all questions to get your test result.
1) Who was responsible for discovering that lightning is electricity? This person also discovered the lightning rod along with many other inventions.
A
Benjamin Franklin
B
Thomas Edison
C
Michael Faraday
D
Lewis Latimer
2) The first electric motor, generators, and electromagnets were some of the wonderful inventions by a man named ___________.
A
Michael Faraday
B
Benjamin Franklin
C
Lewis Latimer
D
Thomas Edison
3) _________ created the light bulb and many other inventions important to mankind.
A
Lewis Latimer
B
Michael Faraday
C
Benjamin Franklin
D
Thomas Edison
4) Which of these is NOT an example of static electricity?
A
Wire wrapped around a magnet
B
Rubbing a balloon in your hair and sticking it on the wall
C
Clothes sticking together after removing them from the dryer
D
Shocking a friend with your finger after walking on the carpet
5) Which form of static electricity can be very harmful?
A
Combing your hair
B
Rubbing two balloons together
C
Lightning
D
Rubbing your feet on a carpet
6) Which of these materials is the best electrical conductor?
A
copper wire
B
dry soil
C
sticks
D
string
7) What can rubber, glass, and plastic all be used as?
A
insulators
B
circuits
C
conductors
D
electromagnets
8) Which of these is NOT a conductor?
A
copper
B
human body
C
water
D
plastic
9) Many electrical wires are wrapped with a plastic coating because plastic is _______.
A
a good insulator
B
able to keep its shape
C
less expensive than steel
D
more dense than copper
10) A current is defined as:
A
A circuit with an opening or break in it
B
Electricity that occurs in nature when objects rub together
C
Materials that electricity do not flow through easily
D
A flow of electrical charges from atom to atom
*select an answer for all questions
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