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Worksheets

Magnetism and Electricity

Total questions: 25

Worksheet time: 1hrs 15mins

Name
Class
Date
1.

Which of these forces works only by combining electric and magnetic forces?

a)

Magnetic

b)

Electric

c)

Electromagnetism

2.

This force occurs when there is an attractive and repulsive force between two poles.

a)

Magnetic

b)

Electric

c)

Electromagnetism

3.

In a magnet the opposite poles will ___________.

a)

attract

b)

repel

4.

What makes an electromagnet stronger?

a)

greater number of loops

b)

smaller number of loops

c)

decreasing the current

d)

decreasing the voltage

5.

current flowing through a wire is surrounded by a/an

a)

force field

b)

magnetic force

c)

nothing

6.

when electrons all spin in the same direction, they create an invisible force known as

a)

electricity

b)

magnetism

c)

motor

d)

electrons

7.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
8.
What would increase the strength of an electromagnet?
a)
Increasing the amount of current flowing through the wire.
b)
Inserting a wooden core inside the coil
c)
Changing the direction of the current
d)
Decreasing the number of coils of wire
9.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
10.
What do you make if you wrap a current-carrying wire around an iron bolt?
a)
electromagnet
b)
electric motor
c)
generator
11.
What is the region of force around a magnet known as?
a)
magnetic field
b)
magnetic pole
c)
magnetic domain 
d)
lodestone
12.
Magnets attract to __________________.
a)
iron
b)
nickel
c)
cobalt
d)
all of the above
13.
True of False:  Magnets attract to aluminum foil.
a)
True
b)
False
14.
True or False:  An electromagnet can function without electricity.
a)
True
b)
False
15.
In this image, matching north poles from two magnets are introduced.  What do you predict will be the outcome?
a)
There will be no interaction.  The poles of magnets do not have an effect on one another.
b)
The two north poles will attract each other
c)
The two north poles will repel each other
d)
The two magnets will combine and become one magnet
16.
True or False:
A magnet wrapped in cloth will attract paper clips.
a)
True
b)
False
17.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
18.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
19.
The force of magnetism is stronger when magnets are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
20.

When iron touches a magnet, it becomes a magnet too.

a)

True

b)

False

21.

Once a paperclip touches a magnet and becomes a magnet itself, does a paperclip STAY that way? Or does it stop being a magnet?

a)

stay that way forever

b)

stop being a magnet

c)

stay that way for a short time

22.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
23.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
24.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
25.
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