WorksheetsKS3 Yr8 Electricity and magnetism
Total questions: 88
Worksheet time: 2hrs 12mins
Name
Class
Date
1.
What is this symbol for?
a)
light bulb
b)
cell
c)
battery
d)
resistor
2.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
3.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
4.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
5.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
6.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
7.
This is the symbol for a
a)
Closed switch
b)
Push switch
c)
Trap door
d)
AC Power supply
8.
This is the circuit symbol for a ___
a)
Open switch
b)
Closed switch
c)
Open door
d)
Thermistor
9.
Electric current is the flow of:
a)
electrons
b)
protons
c)
neutrons
d)
none of these
10.
Which circuit diagram matches this picture of a circuit?
a)
A
b)
B
c)
C
d)
D
11.
What is the unit of Current?
a)
Amps
b)
Watts
c)
Volts
d)
Joules
12.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
13.
What kind of circuit is this?
a)
series
b)
parallel
14.
The picture shows an electrical circuit. This circuit is a series circuit because:
a)
it has 3 light bulbs.
b)
the same current flows through all three light bulbs.
c)
it uses a single battery.
d)
the electrical current has more than one path to flow through
15.
This picture is an example of what kind of circuit?
a)
Series
b)
Complete
c)
Broken
d)
Parallel
16.
Which of the following answer choices correctly describes the image?
a)
Series circuit - Bulbs are lit
b)
Series circuit - Bulbs are off
c)
Parallel circuit - Bulbs are lit
d)
Parallel circuit - Bulbs are off
17.
What is a current?
a)
A constant flow of metal
b)
A path that a current can flow along
c)
A flow of negative charge
18.
Levi is wanting to light a bulb. What does he need to get the bulb to light?
a)
A battery and a paper clip
b)
A battery and a wire
c)
A paper clip and a wire
d)
A switch and a wire
19.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
20.
If you replace the paper clip with a plastic spoon, what is the plastic spoon acting as?
a)
A conductor
b)
A diode
c)
An insulator
d)
A switch
21.
A series circuit has ____ path(s) that the electric current can take.
a)
One
b)
Two
c)
Three
d)
Four
22.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
23.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
24.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
25.
Which one is a conductor?
a)
wood
b)
iron
c)
plastic spoon
d)
paper
26.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
27.
What material is attracted to a magnet?
a)
Silver
b)
Water
c)
Metal
d)
Iron
28.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
29.
A north pole and a south pole will attract.
a)
True
b)
False
30.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
31.
True or False: All metals are attracted to magnets.
a)
True
b)
False
32.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
33.
What are the parts of the magnet that is attracted to the paper clips?
a)
the center
b)
the poles
c)
the equator
d)
the horseshoe
34.
a)
A push away
b)
A pull towards
c)
No Force
35.
Which statement is true?
a)
All Magnets have a North and South Pole
b)
All magnets can attract large objects
c)
Magnets can not pull through Solids.
d)
All Magnets have the Same shape and Size
36.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
37.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
38.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
39.
The force of magnetism can go through many materials.
a)
True
b)
False
40.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
41.
What would we call a nail that can pick up a paperclip because it is touching a magnet?
a)
temporary magnet
b)
poles
c)
force
d)
detector
42.
The force of magnetism is stronger when magnets are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
43.
Iron, Nickel and cobalt are all __________________ materials
a)
Shiny
b)
poles
c)
magnetic
d)
cold
44.
Which object would a magnet attract?
a)
a glass bottle
b)
a piece of paper
c)
a metal paper clip
compass
compass
d)
a rubber eraser
magnetic field
magnetic field
45.
A magnet will attract scissors if the scissors contain:
a)
copper
b)
aluminum
c)
gold
d)
nickel
46.
Which of the following is true about a bar magnet?
a)
Its magnetic field is strongest near its center.
b)
It is surrounded by a magnetic field.
c)
The north pole is stronger than the south pole.
d)
The south pole is stronger than the north pole.
47.
This is a picture of a ________________ magnet.
a)
bar
b)
circle
c)
horseshoe
d)
paddle
48.
Which two metals will be attracted by a magnet?
a)
iron and steel
b)
gold and silver
c)
aluminum and lead
d)
copper and cobalt
49.
The space around a magnet where the force of a magnet can attract best is called__________
a)
magnetism
b)
bar magnet
c)
horseshoe magnet
d)
magnetic field
50.
What characteristics do magnetic substances have?
a)
They can give you a "shock" when you touch them
b)
They can push or pull objects without touching them
c)
They are always black and cold to touch
d)
They fall faster than other objects when you drop them
51.
Where is Earth's magnetic field strongest?
a)
Along the outside lines
b)
Along the inside lines on either side
c)
Where the lines are close together at the poles
d)
In the space outside of the lines
52.
If an object is magnetic, will it attract or repel a magnet?
a)
Attract
b)
Repel
53.
How is an electromagnet different from a permanent magnet?
a)
An electromagnet is smaller and less powerful.
b)
An electromagnet's magnetism can be turned off.
c)
An electromagnet can be built without using metal.
d)
An electromagnet does not attract objects containing iron.
54.
A simple electromagnet can be made with which of the following?
a)
an electric current
b)
a turbine and nail
c)
a nail, a wire, and a battery
d)
a compass and a battery
55.
A coil that is magnetized only when an electric current flows through it is_______.
a)
a battery
b)
a generator
c)
a conductor
d)
an electromagnet
56.
How can the strength of an electromagnet be increased?
a)
by rubbing it with a stronger magnet
b)
by increasing the coils of wire around the iron
c)
by increasing the length of the wire from the battery
d)
by loosening the coil of wire around the iron
57.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
58.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
59.
The further two magnets are apart, the __________________ the force of magnetism.
a)
stronger
b)
weaker
c)
same
60.
True or False: A magnetic field is invisible.
a)
True
b)
False
61.
The planet earth is a giant magnet?
a)
True
b)
False
62.
When _______________ travels through a
conductor, a magnetic field is created
a)
current
b)
a magnetic field
c)
neutrons
63.
Electric currents produce _____________
a)
electron clouds
b)
magnetic fields
c)
sound waves
64.
Bob made an electromagnet but it was very weak. How can he make it stronger?
a)
take away a cell from the battery
b)
decrease the voltage
c)
use thicker wire
d)
use less coils
65.
What component becomes a temporary magnet when electricity is flowing through the circuit?
a)
battery
b)
wire coil
c)
switch
d)
core
66.
Which component controls the flow of electricity by opening and closing the circuit?
a)
switch
b)
d cell
c)
wire coil
d)
core
67.
Which component provides the stored energy to run the electromagnet?
a)
cell/ battery
b)
core
c)
coil
d)
wire
68.
Coil of wire wrapped around a core and hooked up to a circuit is called an...
a)
core
b)
coil
c)
electromagnet
d)
telegraph
69.
_____________________ coils make a stronger electromagnet,
a)
Thicker
b)
Tighter
c)
Less
d)
Crazier
70.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
71.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
72.
wood is a _____?
a)
conductor
b)
insulator
73.
brass is a _____?
a)
insulator
b)
conductor
74.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
75.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
76.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
77.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
78.
This circuit has more than one loop. When one light goes out, the others stay on.
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit
79.
what kind of circuit is this?
a)
parallel
b)
series
c)
chris barton
d)
open
80.
a)
Bulbs are in parallel - Circuit X is brighter than Circuit Y
b)
Bulbs are in parallel - Circuit Y is brighter than Circuit X
c)
Bulbs are in series - Circuit X is brighter than Circuit Y
d)
Bulbs are in series - Circuit Y is brighter than Circuit X
81.
This circuit does not work because…
a)
the bulbs are not connected properly
b)
two cells are not powerful enough
c)
there is a break in the circuit
d)
the cells are facing each other
82.
This circuit does not work because…
a)
the bulbs are not connected properly
b)
the single cell is not powerful enough
c)
there is a break in the circuit
d)
there is a short crcuit
83.
a)
Circuit X is brighter than circuit Y
b)
Circuit Y is brighter than circuit X
c)
Both circuits have the same brightness
d)
Neither circuit will light the bulbs
84.
a)
X = OFF
Y = OFF
Y = OFF
b)
X = ON
Y = OFF
Y = OFF
c)
X = OFF
Y = ON
Y = ON
d)
X = ON
Y = ON
Y = ON
85.
The bulb....
a)
lights up brightly
b)
does not light due to a short circuit
c)
does not light as the cells push against each other
d)
may blow as it is in two circuits
86.
a)
all bulbs are lit equally
b)
the two top bulbs are brighter
c)
the single lower bulb is brighter
d)
the single bulb does not light and the other two are dim
87.
when the switch is closed.....
a)
both bulbs TURN ON
b)
both bulbs STAY ON
c)
both bulbs TURN OFF
d)
both bulbs STAY OFF
88.
What is a current?
a)
A constant flow of metal
b)
A path that a current can flow along
c)
A flow of negative charge
100 %
