This Science quiz is called 'Electrical Conductors and Insulators' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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In this Science quiz we take a closer look at two things which are vital if we want to control electricity - electrical conductors and insulators.
Electrical conductors and insulators control heat. There’s nothing like a power cut to make you grateful for electricity! Ordinarily, people take it for granted but we haven’t always had power in our homes. The brilliant Serbian inventor and electrical engineer, Nicola Tesla, invented the generating system which sends electricity to our homes. He also created a method to harness electrical energy and send it anywhere on Earth, although he died before it was completed.
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In order to harness electricity, you need to know all about electrical conductors and insulators. Do you know why electrical plugs are made from plastic or why insulators are important in an electrical circuit? Check your knowledge with this science quiz.
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1.
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A material which is an electrical insulator does what? |
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| [ ] |
It does not allow electricity to pass through it easily |
| [ ] |
It does not allow heat to travel through it easily |
| [ ] |
It allows heat to travel through it easily |
| [ ] |
It allows electricity to pass through it easily |
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2.
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A material which is an electrical conductor does what? |
|
| [ ] |
It does not allow electricity to pass through it easily |
| [ ] |
It does not allow heat to travel through it easily |
| [ ] |
It allows heat to travel through it easily |
| [ ] |
It allows electricity to pass through it easily |
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3.
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In a complete electrical circuit, which materials does electricity flow through? |
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| [ ] |
Electrical insulators |
| [ ] |
Electrical conductors |
| [ ] |
Only leads or wires |
| [ ] |
Only batteries |
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4.
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Which of these is not an electrical conductor? |
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| [ ] |
Gold |
| [ ] |
Copper |
| [ ] |
Aluminium |
| [ ] |
Rubber |
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5.
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Which of these is not an electrical insulator? |
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| [ ] |
Wood |
| [ ] |
Plastic |
| [ ] |
Silver |
| [ ] |
Glass |
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6.
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Why are electrical plugs made of plastic? |
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| [ ] |
Plastic is stronger than all other materials |
| [ ] |
Plastic is a good electrical conductor |
| [ ] |
Plastic protects people from electricity |
| [ ] |
Only plastic can be made into the right shape for a plug |
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7.
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Which of these is a good electrical conductor? |
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| [ ] |
Water |
| [ ] |
Sweat |
| [ ] |
The human body |
| [ ] |
All of the above |
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8.
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Why are insulators important in an electrical circuit? |
|
| [ ] |
They make the circuit safe to touch |
| [ ] |
Electricity will only flow through insulators |
| [ ] |
Light bulbs and buzzers are only made of insulating materials |
| [ ] |
All of the above |
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9.
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Which of these could be used to complete an electrical circuit? |
|
| [ ] |
A piece of gravel |
| [ ] |
A rubber |
| [ ] |
A crayon |
| [ ] |
A pair of scissors |
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10.
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The filament in a light bulb glows because of the material's resistance. What does this mean? |
|
| [ ] |
The filament does not allow the flow of electricity |
| [ ] |
The filament speeds up the flow of electricity |
| [ ] |
The filament slows down the flow of electricity |
| [ ] |
The filament gets annoyed with the electricity |
|
|
|
1.
|
A material which is an electrical insulator does what? |
|
| [x] |
It does not allow electricity to pass through it easily |
| [ ] |
It does not allow heat to travel through it easily |
| [ ] |
It allows heat to travel through it easily |
| [ ] |
It allows electricity to pass through it easily |
|
|
|
2.
|
A material which is an electrical conductor does what? |
|
| [ ] |
It does not allow electricity to pass through it easily |
| [ ] |
It does not allow heat to travel through it easily |
| [ ] |
It allows heat to travel through it easily |
| [x] |
It allows electricity to pass through it easily |
|
|
|
3.
|
In a complete electrical circuit, which materials does electricity flow through? |
|
| [ ] |
Electrical insulators |
| [x] |
Electrical conductors |
| [ ] |
Only leads or wires |
| [ ] |
Only batteries |
|
|
|
4.
|
Which of these is not an electrical conductor? |
|
| [ ] |
Gold |
| [ ] |
Copper |
| [ ] |
Aluminium |
| [x] |
Rubber |
|
|
|
5.
|
Which of these is not an electrical insulator? |
|
| [ ] |
Wood |
| [ ] |
Plastic |
| [x] |
Silver |
| [ ] |
Glass |
|
|
|
6.
|
Why are electrical plugs made of plastic? |
|
| [ ] |
Plastic is stronger than all other materials |
| [ ] |
Plastic is a good electrical conductor |
| [x] |
Plastic protects people from electricity |
| [ ] |
Only plastic can be made into the right shape for a plug |
|
|
|
7.
|
Which of these is a good electrical conductor? |
|
| [ ] |
Water |
| [ ] |
Sweat |
| [ ] |
The human body |
| [x] |
All of the above |
|
|
|
8.
|
Why are insulators important in an electrical circuit? |
|
| [x] |
They make the circuit safe to touch |
| [ ] |
Electricity will only flow through insulators |
| [ ] |
Light bulbs and buzzers are only made of insulating materials |
| [ ] |
All of the above |
|
|
|
9.
|
Which of these could be used to complete an electrical circuit? |
|
| [ ] |
A piece of gravel |
| [ ] |
A rubber |
| [ ] |
A crayon |
| [x] |
A pair of scissors |
|
|
|
10.
|
The filament in a light bulb glows because of the material's resistance. What does this mean? |
|
| [ ] |
The filament does not allow the flow of electricity |
| [ ] |
The filament speeds up the flow of electricity |
| [x] |
The filament slows down the flow of electricity |
| [ ] |
The filament gets annoyed with the electricity |
|
|
