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Magnetic and Electric Forces

Total questions: 35

Worksheet time: 24mins

Name
Class
Date
1.

The parts of the magnet with the strongest attraction, often labeled N and S, are called 'magnetic __________'.

a)

poles

b)

attractor

c)

repel

d)

compass

2.

An object with a negative charge will _______ an object with a positive charge.

a)

Attract

b)

Repel

3.

An object with a positive charge will ________ an object with a positive charge.

a)

Attract

b)

Repel

4.

When two magnets are pushed away from one another they ______.

a)

Attract

b)

Pole

c)

Repel

d)

Compass

5.
A negative charge and a negative charge will __________.
a)
Attract 
b)
Repel
6.
Will these two magnets attract or repel?
a)
Attract
b)
Repel
7.

Atoms with an overall positive charge will be attracted to atoms with a ______________ charge.

a)

positive

b)

negative

c)

no charge

8.

In a magnet the opposite poles will

a)

Attract

b)

Repel

c)

Neither

9.

In a magnet, like poles will

a)

Attract

b)

Repel

c)

Neither

10.

The magnetic field of a magnet is ____________ further away from the magnet.

a)

smaller

b)

stronger

c)

larger

d)

weaker

11.

The area around an electric charge that experiences the force exerted by the electric charge is called the:

a)

Electric Field

b)

Magnetic Field

c)

Electric Force

d)

Magnetic Force

12.

What is this image showing.

a)

Electric Current

b)

An Electromagnet

c)

Magnetic Force

d)

Magnetic Field

13.

When electrons all spin in the same direction, they create an invisible force known as_______

a)

Electricity

b)

Magnetism

c)

Static Electricity

d)

Electromagnet

14.

Which two examples below result in an attractive force?

a)

A positive charge and a negative charge

b)

Two negative charges

c)

Two south poles

d)

A north pole and a south pole

e)

Two postive charges

15.

Static electricity is the buildup of charges between two objects. What best explains why a balloon is attracted to hair when the two have been rubbed together?

a)

The balloon and hair both have positive charges

b)

The balloon and the hair both have negative charges

c)

The balloon and the hair both have neutral charges

d)

The balloon and the hair both have opposite charges

16.

Two bar magnets are held close together. They are released and allowed to move freely. The bar magnets quickly come together. Which best explains why this happens?

a)

The poles facing one another are both south poles

b)

The poles facing one another are both north poles

c)

The poles facing one another are opposite poles

d)

One magnet was bigger than the other

17.

Surrounding each magnetic is an invisible force field called

a)

Gravity

b)

A magnetic field

c)

An electric field

d)

The Force

18.

What is the cause of electricity?

a)

Magnetism

b)

Gravity

c)

Moving electrons

d)

Lightning

19.

Students attach magnets to toy race cars. They want one car to push another car without touching it. How can the students arrange two cars so they will push each other without touching.

a)
b)
c)
d)
20.

An imbalance of electric charges is known as

a)

Electricity

b)

Static Electricity

c)

Magnetism

d)

Electromagnetism

21.

The __________ is the part of an atom that has a negative charge.

a)

Neutron

b)

Electron

c)

Proton

22.
Magnetic force between two magnets gets weaker the more ________________ between them.
a)
distance
b)
attraction
c)
metal
d)
lightsabers
23.
A magnet cannot not move which of the following objects?
a)
a paper clip
b)
a nail
c)
a toothpick
d)
a staple
24.

An electromagnet is:

a)

A temporary magnet whose magnetic field is produced by electrical current

b)

Force resulting from interaction between electrically charged particles

c)

A charged magnet

d)

Lightening powered generator

25.

A non-contact force is between

a)

two objects that aren't touching

b)

two objects that are touching

c)

the ground and wheels

d)

you and me

26.

Why does a compass needle point north?

a)

Because it is being attracted to the Magnetic South Pole

b)

Because north is up

c)

Because it is being attracted to the Magnetic North Pole

d)

Because north is down

27.

Which metal can be attracted to magnets?

a)

Copper

b)

Aluminum

c)

Iron

d)

Gold

28.

All metals are attracted to magnets

a)

True

b)

False

29.
The positive particles of an atom are 
a)
electrons 
b)
positrons 
c)
neutrons 
d)
protons 
30.

Electrons have a _________ charge.

a)

Negative

b)

Positive

c)

Neutral

31.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
32.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
33.
Where is the proton located?
a)
In the very dense nucleus
b)
Floating around in the negative electron cloud
c)
the loose nucleus
d)
the positive electron cloud
34.
If a substance has an excess number of electrons on its surface, what type of charge does it have?
a)
A negative charge
b)
A positive charge
c)
A neutral charge
d)
A nuclear charge
35.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron

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