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CONDUCTORS AND INSULATORS

Total questions: 35

Worksheet time: 40mins

Name
Class
Date
1.

What is a insulator?

a)

a material that does not allow electric current to flow through it.

b)

a material that allows eletric current to flow through it .

c)

a material that is fluffy

d)

a material that is temperature controlled

2.
What is a conductor?
a)
a material that slows the transfer of heat
b)
a material that transfers heat easily
c)
a material that is fluffy
d)
a material that is temperature controlled
3.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
4.

What is the BEST example of a conductor of thermal energy?

a)

A wooden block

b)

A wool oven mitt

c)

A plastic mug

d)

A metal pan

5.
A jacket is a good example of an . . .
a)
Insulator
b)
Investigator
c)
Conductor
d)
Interrogator
6.

Rubber is a insulator of electric energy

a)

true

b)

false

7.

Mittens help keep your hands warm in winter because

a)

they are colorful

b)

they are fuzzy

c)

they are conductors

d)

they are insulators

8.
Which of the following materials is an electrical conductor?
a)
silver
b)
silver-colored plastic
c)
cork
d)
rubber
9.

In which circuit will the bulb or bulbs glow brightest?

a)

A simple circuit with one light bulb and one battery

b)

A simple circuit with one light bulb and two batteries

c)

A simple circuit with two light bulbs and one battery

10.
Why is a bulb brighter when it is powered by two batteries rather than one?
a)
Because the flow of electricity in the circuit is less
b)
Because the flow of electricity in the circuit is the same
c)
Because the flow of electricity in the circuit is greater
11.
Why is electrical wiring usually made from copper?
a)
Because copper is shiny
b)
Because copper conducts electricity
c)
Because copper is not magnetic
12.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
13.
A conductor allows energy to easily pass by.  
a)
True 
b)
False
14.
True or False: An insulator is a type of material that allows heat to escape from an object quickly.
a)
True
b)
False
15.

A material that prevents heat or an electric current from flowing

a)

Conductor

b)

Insulator

c)

Magnetism

d)

Electric Circuit

16.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Iron
d)
Glass
17.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
18.
Which of the following materials is an electrical insulator?
a)
aluminum
b)
gold
c)
rubber
d)
steel
19.
All of the following are conductors except _______.
a)
metal spoon
b)
wire
c)
iron nail
d)
plastic spoon
20.

This girl is wearing pink wool earmuffs to keep her ears warm in the snowy weather. Differentiate between conductors and insulators. How does the wool affect heat transfer? (wool is a type of fabric)

a)

The wool is a conductor that transfers heat from her ears to the wool earmuffs.

b)

The wool is an insulator that provides heat to keep the girl's ears warm.

c)

The wool is a conductor that transfers heat from the girl's earmuffs to her ears.

d)

The wool is an insulator that keep the girl's ears from loosing heat.

21.

An insulator is often used to help regulate an object's temperature. Differentiate between conductors and insulators. Which item is an example of an insulator?

a)

plastic Ziplock baggie

b)

lunchbox

c)

cardboard juice box

d)

napkin

22.

Which is TRUE about an insulator?

a)

It can be a good conductor.

b)

It allows heat to pass through easily.

c)

It slows energy transfer.

d)

It provides heat to keep materials warm.

23.

The following are conductors EXCEPT-

a)
b)
c)
d)
24.

Which of these is a conductor?

a)
b)
c)
d)
25.

An insulator does not allow electricity to pass through it easily. Which of the following would make a good insulator?

a)

copper penny

b)

iron nail

c)

metal doorknob

d)

rubber glove

26.

The electrical wires in many homes are made of copper and covered with plastic. Why are copper and plastic good choices for electrical wires?

a)

Copper is a conductor of electricity, and plastic is an insulator of electricity.

b)

Copper is an insulator of electricity, and plastic is a conductor of electricity.

c)

Copper is a conductor of electricity, and plastic is an insulator of heat.

d)

Copper is an insulator of electricity, and plastic is a conductor of heat.

27.
A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?
a)
plastic straw
b)
cotton string
c)
aluminum foil
d)
rubber eraser
28.

Which of the following objects will the electrical energy flow through to turn on the light?

a)
b)
c)
d)

ALL OF THE ABOVE

29.
water is a______?
a)
conductor
b)
insulator
30.

Salty water is a /an... .

a)

conductor

b)

insulator

31.

Clay is a / an... .

a)

conductor

b)

insulator

32.

Wood is a/an ... .

a)

conductor

b)

insulator

33.

Paper is a/an ... .

a)

conductor

b)

insulator

34.

Silver is a/an ... .

a)

conductor

b)

insulator

35.

Which of these items would conduct electricity? Tick 2

a)

paper clip

b)

tin foil

c)

whiteboard pen

d)

rubber