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Cambridge Science Unit 9 Stage 7

Total questions: 68

Worksheet time: 42mins

Name
Class
Date
1.

An electrical charge is a property of matter. There are two types of electrical charges, positive and negative.

a)

True

b)

False

2.

Materials that allow charges to flow through them easily. For example, metal is a ____________.

a)

insulator

b)

conductor

c)

discharge

d)

static electricity

3.

Materials that do not let charges flow through them easily. For example, wood is a __________.

a)

conductor

b)

discharge

c)

insulator

d)

electricity

4.

The path along which electrical current flows.

a)

insulator

b)

voltage

c)

conductor

d)

circuit

5.

The example of electrical conductor are …

a)

iron, steel, silver, and copper

b)

copper, rubber, gold, and iron

c)

plastic, glass, paper, and rubber

d)

paper, copper, plastic, and glass

6.

An electrical insulator is a materials that does not allow … to pass through it.

a)

fire

b)

heat

c)

water

d)

electricity

7.

An electron is

a)

an elementary particle consisting of a charge of negative electricity

b)

an elementary particle consisting of a charge of positive electricity

c)

an elementary particle consisting of a charge of negative emotions

d)

an elementary particle consisting of a charge of neutral electricity

8.

Electricity is the flow of _____________?

a)

The flow of electrons from atom to atom.

b)

The flow of sunlight through a chord.

c)

The flow of Neutrons.

d)

The flow of Protons.

9.

Ashley is classifying some objects as conductors or insulators. What is the difference between conductors and insulators?

a)

A conductor allows electrical current to flow through it easily, while an insulator does not.

b)

An insulator allows electrical current to move through it easily, while a conductor does not.

c)

A conductor has a static charge, while an insulator does not.

d)

An insulator is a metal, while a conductor is not a metal.

10.
Copper is used in wiring because it is an excellent______________ of electricity.
a)
circuit breaker
b)
conductor
c)
insulator
d)
fuse
11.
Rubber is a good insulator.
a)

true

b)
false
12.
Protons have a negative charge and electrons have a positive charge.
a)
true
b)
false
13.

In order for electricity to flow you need_________?

a)

wire

b)

battery

c)

closed circuit

d)

light bulb

14.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
15.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
16.
What part of a circuit is this object?
a)
energy source
b)
energy receiver
c)
electrical conductor
d)
switch
17.

Objects with opposite charges _________________ if held next to each other.

a)

repel

b)

explode

c)

attract

d)

are neutral

18.

Which group of materials make good electrical conductors?

a)

Metals

b)

Plastics

c)

Fruits

d)

Woods

19.

Which of these materials is an electrical insulator?

a)

Copper

b)

Steel

c)

Glass

d)

Aluminium

20.

What are the positively charged particles called?

a)

Protons

b)

Neutrons

21.

What are the Neutral charged particles called?

a)

Protons

b)

Neutrons

22.

What are the Negatively charged particles called?

a)

Electrons

b)

Neutrons

23.

What happens if we put two of the opposite charge together?

a)

They Repel

b)

They Attract

24.

What happens if we put two of the Same charge together?

a)

They Repel

b)

They Attract

25.

What are the particles that carry the charge called?

a)

Electrons

b)

Protons

26.

What is current measured in?

a)

Volts

b)

Amps

27.

What does the battery push around the circuit?

a)

Protons

b)

Electrons

28.

What does an Ammeter measure

a)

current

b)

voltage

29.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
30.
Is the circuit pictured complete or incomplete? 
a)
Complete
b)
Incomplete
31.
What does the switch do in a circuit?
a)
It supplies the power.
b)
It carries electricity.
c)
It opens and closes the circuit.
d)
It is an insulator.
32.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
33.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
34.
Electric charges that are different _______ each other.
a)
Attract
b)
Repel
35.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
36.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
37.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
38.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
39.
If the lights are on, the circuit is
a)
closed
b)
open
40.
If the lights are off, the circuit is
a)
closed
b)
open
41.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
42.

This is a...

a)

Battery

b)

Lines

c)

Resistor

d)

bulb

43.

This is a/ an...

a)

resistor

b)

Ammeter

c)

Voltmeter

d)

Switch

44.

This is a/ an...

a)

Ampere

b)

Switch

c)

Bulb

d)

Battery

45.

This is a/ an...

a)

Ammeter

b)

Ampere

c)

Accelerometer

d)

Bulb

46.

What is the function of a switch in a circuit?

a)

to make the current hotter or colder

b)

to turn on and off the flow of current

c)

to show the pathway that current flows

d)

to add more power to the circuit

47.

An incomplete circuit is shown.

To complete the circuit, a wire should be placed from?

a)

point D to point C

b)

point B to point C

c)

point A to point D

d)

point B to point D

48.

How many bulbs in this circuit ?

(a)  

49.

Identify the component symbol

a)

Closed Switch

b)

Open Switch

c)

Battery cell

d)

Bulb

50.

Which letter shows the circuit symbol for a single battery cell ?

(a)  

51.
what is this symbol for?
a)

4 battery cells

b)

open switch

c)

1 battery cell

d)

wire

e)

2 battery cells

52.

How many battery cells are shown in this symbol?

(a)  

53.
This is the symbol for a ...
a)

Wire

b)

Battery

c)

Buzzer

d)

Fuse

54.

Tick all the things you can see in this circuit

a)

open switch

b)

1 battery cell

c)

closed switch

d)

a bulb

e)

an ammeter

55.

How many battery cells are shown in this symbol?

(a)  

56.

Which way around is this battery symbol ?

a)

b)

57.

In this circuit, the lamp is labelled ...

a)

A

b)

B

c)

C

d)

P

58.

How many battery cells can you see here?

(a)  

59.

What is this symbol?

a)

Open Switch

b)

4 cell battery

c)

Bulb

d)

2 cell battery

e)

1 cell battery

60.
a)

Bulb ON

b)

Bulb OFF

61.
a)

Bulb ON

b)

Bulb OFF

62.
a)

Bulb ON

b)

Bulb OFF

63.
a)

Bulb ON

b)

Bulb OFF

64.

Which way around is this symbol of a battery?

a)
b)
65.

In this circuit, the wire is labelled ...

a)

A

b)

B

c)

C

d)

P

66.

How many battery cells are shown in this symbol?

(a)  

67.

How many battery cells are shown in this symbol?

(a)  

68.

In this circuit, the battery cell is labelled ...

a)

A

b)

B

c)

C

d)

P

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