
Electrical Conductors and Insulators
Interactive Video
•
Physics, Science, Other
•
6th - 7th Grade
•
Practice Problem
•
Hard
Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary observation made about the electric wires in the new house?
They are made entirely of plastic.
They have a thin metal wire inside a plastic covering.
They are covered with rubber.
They are made of wood.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a characteristic of conductors?
They prevent electricity from passing through.
They allow electricity to pass through.
They are always made of plastic.
They are non-metallic.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following materials is NOT a conductor?
Plastic
Silver
Iron
Copper
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of insulators in electrical wiring?
To reduce the cost of wiring.
To increase the speed of electric current.
To prevent electricity from passing through.
To conduct electricity efficiently.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is an example of an insulator?
Silver
Copper
Iron
Rubber
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are electrical wires typically made with a copper core?
Copper is a good insulator.
Copper is a good conductor.
Copper is cheaper than plastic.
Copper is non-metallic.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the plastic covering on electrical wires?
To increase the wire's strength.
To conduct electricity.
To make the wire look attractive.
To prevent electric shocks.
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