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WorksheetsConductors & Insulators
Total questions: 22
Worksheet time: 22mins
A material which allows electrical current to pass through it is called
a conductor
an insulator
a cell
a connection
Which of these materials would NOT be a good conductor?
Copper
Glass
Silver
Iron
Why are electrical wires covered with plastic or rubber?
Plastic and rubber are comfortable materials to touch.
Smooth matierials keep wires from getting tangled.
Plastic and rubber are good elelctrical insulators
Plastic and rubber can be made in different colours so people can tell different leads apart.
A material which is an electrical insulator ....
does not allow electricity to pass through it easily.
does not allow heat to travel through it easily.
allows heat to travel through it easily.
allows electricity to pass through it easily.
In a complete electrical circuit , which material does the electricity flow through
Electrical insulators
Electrical conductors
Only leads and wires
Only batteries
What is a electrical circuit?
A series of conductors and insulators
A collection of electrical equipment
A path around which an electrical current flows
A light bulb and battery
With which group of items could you NOT build a complete circuit?
crocodile leads, bulbs,switch, buzzer
bulbs, crocodile leads, cell
wires, bulb, cell
cell, switch, buzzer, crocodile leads
What will a circuit with an open switch do?
It will make a good electrical insulator.
It will not allow electricity to pass through.
It will resist electricity.
It will allow electricity to pass through.
What is a switch's function in a circuit?
To make the current hotter or colder
Be the pathway that current flows along
To turn on and off the flow of current
To add more power to the circuit
Wood is a _____?
conductor
insulator
Water is a ______?
conductor
insulator
Silver is a ________?
conductor
insulator
When all parts of the circuit are connected it is a ______ circuit.
open
closed
When you flip a light switch on and off you are closing and opening a circuit.
True
False
If you replace the paper clip with a plastic spoon, what happens?
The bulb doesn't light.
The wires get hot.
The bulb is dimmer.
There is no change.
If you replace the paper clip with a plastic spoon, what is the plastic spoon acting as?
A conductor
An insulator
A switch
A cell
Which statement is true?
The light bulb will light up because the circuit is complete.
The light bulb will light up because the circuit is broken.
The light bulb will not light up because the circuit is complete.
The light bulb will not light up because the circuit is broken.
A flow of electrons through a conductor is called:
a river
a spark
an electron flow
a current
What is a common energy source for a circuit?
light bulb
battery
wire
switch
What would best complete this circuit?
wire
switch
battery
light bulb
Which one is a conductor?
wood
plastic spoon
iron
paper
Which one is an insulator?
copper wire
paper clip
steel pole
rubber gloves
