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S2S4 Magnetic & Electrical Forces

Total questions: 35

Worksheet time: 18mins

Name
Class
Date
1.
Which answer best describes this image?
a)
The positive charge is repelling the negative charge.
b)
The blue charged object will repel the negatively red charged object.
c)
The positively charged red object will be attracted to the negatively charged blue object.
2.

A magnet cannot move which of the following objects?

a)

a paper clip

b)

a nail

c)

a toothpick

d)

a staple

3.
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
4.

Every magnet has a:

a)

East and West pole

b)

North and South pole

c)

East and South pole

d)

North and West pole

e)

Chicago and Saint pole

5.

What is the name of a magnet that stays magnetic only while it touches a permanent magnet, or one that is magnetic for a very short time?

a)

Temporary magnet

b)

Semi-Permanant magnet

c)

Electromagnet

d)

Natural Magnet

6.
The picture is an example of an:
a)
Electric circuit
b)
Electromagnet
c)
Electric nail
d)
Electric power cell
7.

The entire region surrounding a magnet is known as the:

a)

Magnetic Domain

b)

Lodestone

c)

A Compass

d)

Magnetic Field

8.

Which of the following metals is attracted to magnets?

a)

Copper

b)

Aluminum

c)

Iron

d)

Gold

9.
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
10.

Earth's magnetic field and a bar magnet attract particles to the same locations because they...

a)

are attracted to the middle area

b)

are all around the outside

c)

both have north and south poles

d)

both attract things to the middle, then to the ends

11.
Where are the magnetic force the strongest in this picture?
a)
Location 1
b)
Location 2
c)
Location 3
d)
Location 4
12.

All metals are attracted to magnets

a)

True

b)

False

13.
This type of force is when one object pushes or pulls on another object by touching it
a)
contact
b)
gravity
c)
magnetic
14.
Is the following picture a Contact or Non-Contact  force?
a)
Contact
b)
Non-Contact
15.
This image is showing 
a)
attraction
b)
repulsion
16.
What type of force?
a)
Magnetic
b)
Gravitational
c)
Applied
d)
Normal
17.

Why do socks stick together when they come out of the dryer?

a)

One has a negative charge and the other has a positive charge

b)

Both have negative charges

c)

Both have positive charges

18.
Magnets that are arranged like this will _______. 
a)
move away from each other (repel)
b)
move towards each other (attract)
19.
These magnets will _______.
a)
move away from each other (repel)
b)
move toward each other (attract)
20.

a buildup of electric charges on an object is called...

a)

static electricity

b)

electric force

c)

electrical circuit

d)

electric discharge

21.

How are electromagnets different from permanent 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

22.

How can you increase the strength of this electromagnet?

a)

Get a larger nail.

b)

Add more loops of wire.

c)

decrease the loops of wire.

d)

Get a smaller nail.

23.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
24.
This diagram shows the placement of four bar magnets within the magnetic field of a larger bar magnet.  Which bar magnet will experience the greatest magnetic attraction?
a)
Magnet 1
b)
Magnet 2
c)
Magnet 3
d)
Magnet 4
25.
Static electricity is:
a)
electricity flowing in a wire
b)
the buildup of electric charges on an object
c)
when protons move between objects
26.
Lightning is _____.
a)
a buildup of neutrons
b)
harmless
c)
a high-voltage electric current
d)
a large discharge of static electricity
27.
What is a magnetic field?
a)
purple lines with arrows
b)
area of magnetic force around a magnet
c)
it's like a really big football field
d)
area of a magnet around a magnetic force
28.
Are the magnetic field lines in the picture correct?
a)
Yes, because they point from north to south.
b)
No, because they point from north to south (they're supposed to go the other way).
c)
Yes, because the North pole is on the left in all pictures.
d)
No, because the North pole is on the left in all pictures (it's supposed to be on the right).
29.
How do we know that the Earth's geographic north pole is actually the Earth's magnetic south pole?
a)
Compass magnets' north pole points to the geographic north pole, so that must be the magnetic south pole.
b)
Compass magnets can't help us understand Earth's magnetic poles at all.
c)
The geographic north pole is the same as the magnetic north pole, no matter what compass magnets say.
d)
Compass magnets can only work in the western hemisphere.
30.

Which best describes how a motor works?

a)

When a fan blows on a wire, it causes it to spin, creating a force.

b)

When a fan blows on a wire, it causes it to spin, creating an electrical current.

c)

When a wire that carries electrical current is placed in zero gravity, the wire experiences a force.

d)

When a wire that carries electrical current is placed in a magnetic field, the wire experiences a force.

31.
Michael Farraday discovered that electricity could be used to make 
a)
A motor
b)
A car
c)
A lightbulb
d)
A compass
32.

What did Faraday discover that was necessary/related to creating the first generator?

a)

Electricity and Electrostatics

b)

Electricity and Magnetism

c)

Electricity and Metal Conductors

d)

Electricity and Memory loss

33.

What can be done to increase the strength of an electromagnet

a)

increase the number of wire wraps

b)

use a larger non magnetic gold nail

c)

use a magnetic metal (iron) for the wire wraps

d)

All of the answers will increase its strength

34.

Magnetic or Electrical force fields weaken as distance...

a)

increases

b)

decreases

c)

stays the same

d)

none of the answers

35.

What occurs when electrical and/or magnetic fields overlap?

a)

nothing

b)

motion

c)

none of the answers will occur

d)

all the answers will occur

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