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WorksheetsElectromagnetism IGCSE
Total questions: 45
Worksheet time: 34mins
Name
Class
Date
1.
The process of creating a current in a circuit by changing a magnetic field
a)
A. electric generator
b)
B. electric motor
c)
C. electromagnetic induction
d)
D. magnet
2.
What is created when a magnet moves through a coil of wire?
a)
A. an
electromagnet
b)
B. a ferromagnet
c)
C. a
solenoid
d)
D. an
electric current
3.
What kind of magnet can be turned on and off?
a)
refrigerator magnet
b)
electromagnet
c)
magnetite
d)
iron
4.
If you wrap more coils around an electromagnet, it will become
a)
brighter
b)
stronger
c)
weaker
d)
invisible
5.
What is the flow of electricity?
a)
electric motor
b)
Electric current
c)
Electric eel
d)
electric circuit
6.
A device that converts electrical energy into kinetic energy
a)
A. electromagnet
b)
B. electromagnetic induction
c)
C. electric motor
d)
D. electromagnetism
7.
Passing an electric current around an iron object will temporarily make the object magnetic.
a)
True
b)
False
8.
Magnetic fields are created by moving _______.
a)
Atoms
b)
Protons
c)
Electric Charges
d)
Metals
9.
When an electromagnet's circuit is broken, it loses its magnetic properties.
a)
True
b)
False
10.
The magnetic field of an electromagnet ______.
a)
Can be turned on and off.
b)
Is permanent.
c)
Lasts for only one hour.
d)
Lasts for one day.
11.
Electricity is the flow of ____________.
a)
Protons
b)
Neutrons
c)
Electrons
12.
a)
Series Circuit
b)
Parallel Circuit
13.
The Law of Conservation of Energy states that...
a)
energy can be created when a new power source is introduced.
b)
energy can neither be created nor destroyed.
c)
energy is destroyed when a circuit is broken.
d)
energy can be created using a generator.
14.
What is created when a magnet moves through a coil of wire?
a)
A. an electromagnet
b)
B. a ferromagnet
c)
C. a solenoid
d)
D. an electric current
15.
Choose the best option to complete this gap:
A magnetic field is the ________ around a magnet in which the magnetic force acts.
A magnetic field is the ________ around a magnet in which the magnetic force acts.
a)
pole
b)
electron
c)
area
d)
iron
16.
How were we able to turn the electromagnet off?
a)
Hooking the wire up to the battery/
b)
Moving the battery further away from metal objects
c)
Disconnecting the circuit to stop current flow
17.
According to the Right Hand Rule, where is the magnetic field generated around a current-carrying wire?
a)
Perpendicular to the wire
b)
Parallel to the wire
18.
Faraday demonstrated that an electric current can be created by...
a)
Having a magnet near by
b)
Moving a magnet near a wire
c)
Hooking a wire up to a battery
d)
Running a generator
19.
Motors start with _________ energy and end with ___________ energy
a)
kinetic, electric
b)
electric, kinetic
c)
potential, magnetic
d)
electric, magnetic
20.
A device that increases or decreases the voltage of alternating current
a)
A. magnet
b)
B. magnetic pole
c)
C. transformer
d)
D. magnetic force
21.
What is the transfer of electricity in a generator?
a)
Mechanical to Electrical
b)
Physical to Potential
c)
Electrical to Mechanical
d)
Yogurt to Light
22.
What can you use to make an electromagnet?
a)
Battery, nail and string
b)
Battery, pencil and wire
c)
Wire, battery and iron ore (nail)
d)
Peanut butter, lampshade, hand sanitizer
23.
In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.
a)
Wind
b)
Water
c)
Magnets
d)
Circuits
24.
Which device uses mechanical energy to produce electrical energy?
a)
Electric Motor
b)
Magnet
c)
Generator
d)
Solar Cell
25.
What force does a magnetic field apply without actually touching the object?
a)
a push or pull
b)
gravity
c)
friction
d)
pressure
26.
What happens to the strength of an electromagnet as you add more coils around it?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Stops completely
27.
What is the device seen here?
a)
generator
b)
electric motor
c)
electromagnet
d)
magnet
28.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
29.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
30.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
d)
an enemy
31.
If I were to try to connect the north pole of one magnet to the north pole of another magnet, the two poles would:
a)
attract
b)
repel
c)
neither
d)
flip
32.
If I were to try to connect the north pole of one magnet to the south pole of another magnet, the two poles would:
a)
attract
b)
repel
c)
neither
d)
flip
33.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
34.
What is the flow of electrical charges called?
a)
Voltage
b)
Resistance
c)
Current/electricity
d)
Circuit
35.
What does a motor do?
a)
Moves up and down
b)
Rotates without electricity
c)
It does
d)
Uses electricity to rotate
36.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
37.
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
38.
This picture is an example of a ___________
a)
Step- Up Transformer
b)
Step- Down Transformer
c)
Motor
d)
Generator
39.
Based on this picture, which side will have a higher voltage?
a)
Secondary
b)
Primary
c)
Both sides have the same voltage
d)
Cannot be determined
40.
How do you increase the strength of an electromagnet?
a)
Decrease the number of batteries and increase the number of coils
b)
Increase the electric current and decrease the batteries
c)
You cannot strengthen an electromagnet
d)
Increase the electric current and increase the number of coils
41.
What is created when a magnet moves through a coil of wire?
a)
An electric current
b)
An electromagnet
c)
A solenoid
d)
A ferromagnet
42.
This picture shows a turbine generator used to produce electricity at a geothermal power plant.
Electricity is produced by using steam to _____________.
Electricity is produced by using steam to _____________.
a)
heat the turbine generators
b)
spin the turbine generators
c)
reduce friction in the turbine generators
d)
reduce emissions from the turbine generators
43.
In Fleming's Left Hand Rule what does your thumb tell you?
a)
Current
b)
Motion
c)
Field Direction
44.
In Fleming's Left hand Rule what does your first finger tell you?
a)
Motion
b)
Current
c)
Field Direction
45.
In Fleming's Left hand Rule what does your second finger tell you?
a)
Motion
b)
Current
c)
Field Direction
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