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Electromagnetism

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.
What kind of magnet can be turned on and off? (Man-made magnet)
a)
refrigerator magnet
b)
electromagnet
c)
magnetite
d)
iron
2.
If you wrap more coils around an electromagnet, it will become...(think about the Webquest.)
a)
brighter
b)
stronger
c)
weaker
d)
invisible
3.
How do like poles interact with each other? (north to north)
a)
They repel each other.
b)
They attract each other.
c)
Throw a toaster into a bathtub.
d)
No relationship.
4.
Choose the best option to complete this gap:
A magnetic field is the ________ around a magnet in which the magnetic force acts.
a)
pole
b)
electron
c)
area
d)
iron
5.
Opposite poles _____ .
a)
attract
b)
push away
c)
are balanced
d)
transfer electrons
6.
A material in which electrons are not able to move easily 
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
7.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
8.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal screw
d)
a wooden handle
9.

The relationship between electricity and magnetism is called

a)

solenoid

b)

transformer

c)

electromagnetism

d)

electromagnet

10.

Particles with opposite charges ____________ and particles with same (or like) charges ____________.

a)

attract, repel

b)

repel, repel

c)

attract, attract

d)

repel, attract

11.

What happens if you cut a magnet in half?

a)

Nothing

b)

The magnets repel

c)

There will be two magnets

12.

The picture above is an example of what?

a)

Magnetic field

b)

Electric field

c)

Repulsion

d)

Attraction

13.

What does the magnetic field look like on a straight wire?

a)
b)
c)
d)
14.
A turbine is used to ________ the magnet in a generator.
a)
rotate
b)
electrify
c)
attract
d)
repel
15.
Voltage can be induced in a wire by
a)
a. moving the wire near a magnet.
b)
b. moving a magnet near the wire.
c)
c. changing the current in a nearby wire.
d)
d. all of these
16.
What would happen if I move a bar magnet in and out of a coil of copper wire?
a)
Electric current would disappear 
b)
The magnet would explode 
c)
Electric current will flow through the wire
d)
It would produce a gravitational field
17.
A magnet can move in a coil of wire to produce electricity in which system?
a)
Generator
b)
Motor
c)
Magnet
d)
Transformer
18.

What type of device is being shown?

a)

Electromagnet

b)

Electric motor

c)

Electric generator

d)

Electromagnetic Induction

19.

What type of process is shown?

a)

Electromagnet

b)

Electric motor

c)

Electric generator

d)

Electromagnetic induction

20.

What type of device is shown?

a)

Electromagnet

b)

Electric motor

c)

Electric generator

d)

Electromagnetic induction