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Electricity Gr-3 Cambridge Primary

Total questions: 80

Worksheet time: 46mins

Name
Class
Date
1.

Devices used on purpose to safely break and complete circuits.

a)

Fuse

b)

Switch

c)

Battery

d)

Wire

2.

We need to follow safety ___________________ when using electricity or else you could suffer electric shocks.

a)

methods

b)

booklets

c)

precautions

d)

pylons

3.

True / False -- You can put anything such as a fork into electric sockets.

a)

True

b)

False

4.

Look and identify the power station shown in the picture.

a)

geothermal

b)

solar thermal

c)

hydroelectric

d)

fossil-fueled

5.

Look and identify the power station shown in the picture.

a)

photovoltaic

b)

fossil-fueled

c)

geothermal

d)

solar thermal

6.

Look and identify the power station shown in the picture.

a)

hydroelectric

b)

fossil-fueled

c)

wind

d)

geothernal

7.

Identify if it's Renewable / Non-renewable ?

a)

Renewable

b)

Non-renewable

8.

Identify if it's Renewable / Non-renewable ?

a)

Renewable

b)

Non-renewable

9.

Identify if it's Renewable / Non-renewable ?

a)

Renewable

b)

Non-renewable

10.

Identify if it's Renewable / Non-renewable ?

a)

Renewable

b)

Non-renewable

11.

Always ________________ electrical appliances when not using them.

a)

turn off

b)

turn on

c)

destroy

d)

replace

12.

Use ____________ instead of air conditioners.

a)

lamps

b)

turn off

c)

turn on

d)

fans

13.

Do not open the __________________ and freezers too often. The cool air will escape.

a)

doors

b)

windows

c)

refrigerators

d)

kitchen

14.
Using the picture above, which letter correctly labels the battery?
a)
A
b)
B
c)
C
d)
D
15.
Using the picture above, which letter correctly labels the switch?
a)
A
b)
B
c)
C
d)
D
16.
Using the picture above, which letter correctly labels the wire?
a)
A
b)
B
c)
C
d)
D
17.
Which of the following provides stored energy to run the circuit?
a)
Battery
b)
Light Bulb
c)
Switch
d)
Wire
18.
Which of the following controls the flow of electricity by opening and closing the circuit?
a)
Battery
b)
Light Bulb
c)
Switch
d)
Wire
19.
Which of the following produces light when part of a complete circuit?
a)
Battery
b)
Light Bulb
c)
Switch
d)
Wire
20.
Which kinds of materials make good conductors?
a)
Fabric
b)
Metal
c)
Plastic
d)
Wooden
21.
Which of the following is evidence that energy is present and electricity is flowing?
a)
A component gets hot.
b)
A light bulb shines.
c)
A motor spins.
d)
All of the above.
22.
Which of the following is NOT a source of energy?
a)
D-cell battery
b)
Food
c)
Sun
d)
Wire
23.
Electric energy can be transformed into
a)
light, mechanical, sound, and heat
b)
taste, sound, stored, and heat
c)
stored, mechanical, taste, and light
d)
sound, mechanical, taste, and heat
24.
A light bulb in a circuit transfers energy into 
a)
Motion
b)
heat and light
c)
sound and light
d)
light
25.

The components of a circuit are

a)

Bulb, switch, battery, duck

b)

Wire, switch, battery, duck

c)

Bulb, battery, wire, switch

d)

Duck, bulb, wire, switch

26.
a)

The bulb will glow

b)

The bulb will not glow

c)

The bulb may glow because the particles will jump

d)

The bulb may not glow because the particles will not jump

27.

What will protect the man from passing electricity?

a)

Rubber slippers

b)

Cotton shirt

c)

His body

d)

Cotton shorts

28.

The flow of electricity in one direction is

a)

electric path

b)

electric charge

c)

electric way

d)

electric current

29.

The continuous path the electric current flows in is called

a)

charge

b)

circuit

c)

current

d)

particles

30.

Radhika find the plugs at home are covered in plastic. This is necessary because

a)

Plastic is strong

b)

Plastic will melt

c)

Plastic is an insulator

d)

Plastic is a conductor

31.

Tasha tested several items to see if they could conduct electricity. Her data is shown in the table. What is the best claim she could make from her data?

a)

Wood is an insulator.

b)

Metal is an insulator.

c)

Toothpicks are conductors.

d)

Keys are insulators.

32.

The source of electricity is

a)

The bulb

b)

The wire

c)

The bulb and the wire

d)

The battery

33.

A hair dryer in water is dangerous.

a)

True

b)

False

34.

A hair dryer in water is dangerous because

a)

Both are insulators

b)

Both are conductors of electricity

c)

Water is a conductor of electricity

d)

It is not dangerous

35.

There are ................... types of electrical charges.

a)

1

b)

2

c)

8

d)

9

36.

The flow of electric charge in a circuit is called _______.

a)

Heat

b)

Sound

c)

Electric Current

d)

Magnetic

37.

If the light is on, the circuit is _________________.

a)

closed

b)

open

38.

Identify the conductor below.

a)

paper

b)

plastic

c)

metal

d)

wood

39.

Identify the part of a circuit that is labeled 2.

a)

battery

b)

wire

c)

switch

d)

bulb

40.

How can it be explained that someone's hair can stick to a balloon?

a)

There is static electricity.

b)

There is too much dust in the air.

c)

The person needs to wash his hair.

41.

A/an _________________ is a material that will not allow electricity to flow through it.

a)

insulator

b)

conductor

42.

Another name for a battery is:

a)

circuit

b)

light

c)

buzzer

d)

cell

43.
Which of these need electricity to work?
a)
torch
b)
table
c)
scooter
d)
chair
44.
Which of these is not a conductor of electricity?
a)
plastic comb
b)
zinc nail
c)
aluminium spoon
d)
copper coin
45.
Objects that are made from materials that do not allow electricity to pass through are called:
a)
Conductors
b)
Switches
c)
Insulators
d)
Batteries
46.
Why is it dangerous to use an electrical appliance near water?
a)
It will change the colour of the water.
b)
You could be electrocuted.
c)
You could spill some water.
d)
It might make you thirsty.
47.
A circuit will not work if….
a)
there is a battery.
b)
there is a break in the circuit.
c)
the switch is closed.
d)
there is no bulb.
48.
When more batteries are added to a complete circuit…
a)
the light bulb does not go on.
b)
the light bulb becomes brighter.
c)
the circuit does not work.
d)
the switch goes off.
49.
Which of these circuits will light?
a)
The battery has a wire connected to both sides and the light bulb has two wires connected to each side.
b)
The light bulb only has a wire connected on one side.
c)
The battery only has a wire connected on one side.
d)
The battery and bulb have a single wire attached to each side, making one loop.
50.
Which of these circuits will not light?
a)
The battery light bulb and switch each have a single wire attached to each side, making one loop.
b)
The light bulb only has a wire connected on one side.
c)
The battery, buzzer and bulb each have a single wire attached to each side, making one loop.
d)
The battery and bulb have a single wire attached to each side, making one loop.
51.
Which material is a conductor?
a)
glass
b)
aluminum
c)
wood
52.
Which material is an insulator?
a)
gold
b)
copper
c)
plastic
53.
A/an _____________ circuit has a break and the bulb will not light up.
a)
closed
b)
short
c)
open
54.
If the lights are on, the circuit is
a)
closed
b)
open
55.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
56.

Which of these pictures are correct?

a)
b)
57.

increasing the overload on the same socket leads to ..........

a)

electric fire

b)

electric burns

c)

electric shock

58.

electric fires are put off by .........................

a)

sand

b)

water

59.

one of the dangers of electricity which damage the tissues of human body is ...................

a)

electric fire

b)

electric burns

c)

electric shock

60.
Prevents electric current from flowing.
a)
open circuit
b)
conductor
c)
electricity
d)
closed circuit
61.
a)
insulator
b)
open circuit
c)
electric current
d)
closed circuit
62.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
63.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
64.

To complete a simple circuit the switch lever must be

a)

unattached

b)

open

c)

closed

65.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
66.

Safe or dangerous?

a)

safe

b)

dangerous

67.

Safe or dangerous?

a)

safe

b)

dangerous

68.

Safe or unsafe?

a)

safe

b)

unsafe

69.

Safe or dangerous?

a)

safe

b)

dangerous

70.

Safe or dangerous?

a)

Safe

b)

Dangerous

71.

Safe or dangerous?

a)

safe

b)

dangerous

72.

what all can clouds charge?

a)

tall buildings

b)

wires

c)

pipes

d)

trees

73.

What is a device that contains a thin strip of metal that melts if there is too much current through it called?

a)

third prong

b)

circuit breaker

c)

fuse

d)

short circuit

74.

A current is electrically ______ when charges are able to flow directly into Earth.

a)

voltage source

b)

power

c)

series

d)

grounded

e)

static electricity

75.

What is the term for a reusable safety switch that breaks the circuit when the current gets too high?

a)

third prong

b)

fuse

c)

circuit breaker

d)

short circuit

e)

grounded

76.

What is the difference between a fuse and a circuit breaker?

a)

a fuse can only be used once and a circuit breaker is reusable

b)

a fuse is reusable and a circuit breaker can only be used once

c)

both fuses and circuit breakers can only be used once

d)

both fuses and circuit breakers are reusable

77.
The fuse in a circuit melts when:
a)
An appliance isn't earthed
b)
Too much current flows
c)
Too much voltage flows
78.
What's the first thing you should do if someone is shocked electrically?
a)
Use the fire extinguisher
b)
Check for breathing and heartbeat
c)
Turn off the power source
d)
Remove the person from the power source
79.
a switch that automatically opens if the current in the circuit is too high
a)
parallel circuit
b)
circuit breaker
c)
series circuit
d)
load
80.

Lightning conductor is made up of

a)

Conductor

b)

Oil

c)

Water

d)

Insulator

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