KS2 Science Quiz: Mastering Electrical Conductors

Science Quiz - Electrical Conductors and Insulators (Questions)

Dive into the world of KS2 Science with this quiz focusing on electrical conductors and insulators - the key players in controlling electricity!

Electrical conductors and insulators manage heat. Imagine a world without electricity – power cuts make us appreciate it! Thanks to the smart inventor, Nikola Tesla, we have electricity in our homes. He planned to send it worldwide!

To master electricity, learn about conductors and insulators. Why are plugs plastic? Why are insulators crucial in circuits? Test your smarts with this exciting science quiz!

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A material which is an electrical insulator 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

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

In a complete electrical circuit, which materials does electricity flow through?

[ ]	Electrical insulators
[ ]	Electrical conductors
[ ]	Only leads or wires
[ ]	Only batteries

Which of these is not an electrical conductor?

[ ]	Gold
[ ]	Copper
[ ]	Aluminium
[ ]	Rubber

Which of these is not an electrical insulator?

[ ]	Wood
[ ]	Plastic
[ ]	Silver
[ ]	Glass

Why are electrical plugs made of plastic?

[ ]	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

Which of these is a good electrical conductor?

[ ]	Water
[ ]	Sweat
[ ]	The human body
[ ]	All of the above

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

Which of these could be used to complete an electrical circuit?

[ ]	A piece of gravel
[ ]	A rubber
[ ]	A crayon
[ ]	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
[ ]	The filament slows down the flow of electricity
[ ]	The filament gets annoyed with the electricity

Science Quiz - Electrical Conductors and Insulators (Answers)

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

Insulators are used to prevent electricity from passing through

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

Conductors are used to transfer electricity from one place to another, for example in a circuit

In a complete electrical circuit, which materials does electricity flow through?

[ ]	Electrical insulators
[x]	Electrical conductors
[ ]	Only leads or wires
[ ]	Only batteries

Every component (part) of a complete electrical circuit must include a material which conducts electricity

Which of these is not an electrical conductor?

[ ]	Gold
[ ]	Copper
[ ]	Aluminium
[x]	Rubber

Rubber is an excellent electrical insulator

Which of these is not an electrical insulator?

[ ]	Wood
[ ]	Plastic
[x]	Silver
[ ]	Glass

Silver, like other metals, is not a good electrical insulator. In fact, silver is the best electrical conductor. Because of its expense, it is not used as often as copper

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

Plastic is an electrical insulator. If plugs weren't made of plastic (or another insulator), it would be impossible to touch the plug without receiving an extremely dangerous electric shock

Which of these is a good electrical conductor?

[ ]	Water
[ ]	Sweat
[ ]	The human body
[x]	All of the above

Electricity passes easily though anything wet, such as sweaty hands, and also through the human body. This is why it is so important to NEVER touch a live lead and to always be careful when using electrical objects. Never touch anything electric when you have damp hands

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

Insulating materials protect us (and other living organisms) from electrical currents and they also protect the circuit from damage or interference

Which of these could be used to complete an electrical circuit?

[ ]	A piece of gravel
[ ]	A rubber
[ ]	A crayon
[x]	A pair of scissors

Scissors are made of metal and all metals can conduct electricity

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

Resistivity is a measure of how well materials conduct electricity - less resistance means greater conductivity