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Electricity & Magnetism

Total questions: 58

Worksheet time: 45mins

Name
Class
Date
1.

If you cut a bar magnet in half...

a)

it becomes unmagnetized

b)

contains 1 magnetic pole

c)

is only temporarily magnetized

d)

becomes two smaller, complete bar magnets

2.

Which of the following statements describes the interaction between magnetic poles?

a)

Like poles repel each other, and opposite poles attract each other

b)

Opposite poles repel each other

c)

Like poles attract each other, and opposite poles repel each other

d)

Like poles attract each other

3.

How many poles does a magnet have?

a)

4

b)

2

c)

1

d)

depends on the magnet

4.

Magnetic poles that are alike ______ each other.

a)

Repel

b)

Attract

5.

Magnetic poles that are different _______.

a)

Attract

b)

Repel

6.

Where is the force the strongest on a magnet?

a)

The force is the same across the entire magnet

b)

The south pole of the magnet

c)

Both poles of the magnet

d)

The north pole of the magnet

7.

True or False: Magnets have to touch objects to attract them

a)

True

b)

False

8.

The area surrounding a magnet that is affected by the magnet's force is called a ____________.

a)

Magnetic Field

b)

Magnetic Area

c)

Magnetic Space

d)

Magnetic Range

9.

The magnetic field stores

a)

magnetism

b)

kinetic energy

c)

potential energy

d)

nothing

10.

True or False: Distance cannot affect the amount of PE in a magnetic field.

a)

True

b)

False

11.

True or False: The strength of a magnet affects the amount of PE in the magnetic field.

a)

False

b)

True

12.

What will happen when these magnets are brought close together?

a)

The magnets will attract

b)

The magnets will not move

c)

One magnet will move, the other will not

d)

The magnets will repel

13.

Looking at the drawing. If you tried to move these 2 magnets closer together, what would you feel?

a)

Repulsion -- Push away

b)

No Force

c)

Attraction -- Pull together

14.

True or False: There is more PE in the magnetic field of the green car.

a)

False

b)

True

15.

True or FalsE: Moving the red magnet away increased the PE in the magnetic field.

a)

False

b)

True

16.

Which car has more PE in the magnetic field?

a)

Yellow

b)

Red

17.

What will happen to the two red trains?

a)

They will attract

b)

They will not move because they need to touch

c)

They will repel

d)

Nothing -- there is no force acting on it

18.
What is the name for stored energy?
a)
Prospective Energy
b)
Probable Energy
c)
Potential Energy
d)
Energy cannot be stored
19.
A system can consist of one object.
a)
False
b)
True
20.
An electromagnet...
a)
is a permanent magnet
b)
is made with bar magnets
c)
attracts all metal substances
d)
only works when a current is flowing
21.
Potential energy must always be transferred into a system. 
a)
False
b)
True
22.
Energy can never be ______ or ________.
a)
destroyed, created
b)
converted, transferred
c)
stored, thrown away
d)
made, released 
23.
Kinetic energy is energy from _________.
a)
movement
b)
staying still
c)
batteries 
d)
oulets
24.
In a system of repelling or attracting magnets, the magnetic force is strongest moving with the force. 
a)
False
b)
True
25.
In a system of repelling or attracting magnets, the magnetic force is strongest moving against the force. 
a)
False
b)
True
26.
This snowboarder is moving downhill and therefore has ________.
a)
potential energy
b)
momentum 
c)
increased velocity
d)
kinetic energy
27.
While at the top of the hill, this skier has stored ________ .
a)
kinetic energy
b)
momentum
c)
potential energy 
d)
velocity 
28.
How does energy get into systems? 
a)
Transfers
b)
Conversions
c)
It just appears
d)
It is always there
29.
How does energy transfer into a system of magnets?
a)
Placing a second magnet in the system transfers energy
b)
Removing a magnet from the system transfers energy
c)
It is always present and does not need to be transferred
d)
It needs to be converted into PE then it can transfer by putting a second magnet in the system
30.
There is always more kinetic energy than potential energy in a system. 
a)
True
b)
False
31.
What is a magnet?
a)
metallic materials
b)
metals
c)
objects that attract or repel other objects
d)
objects that can attract or repel other objects without touching 
32.
What is a magnetic field?
a)
area of invisible pushing and pulling forces
b)
the lines around a magnet
c)
clearly visible area of pushing and pulling forces
d)
the area in between a magnet
33.
Magnets have two poles called _________ and _______ poles. 
a)
north, south
b)
east, west
c)
north, east
d)
south, west
34.
Which of the following is not needed to create an electromagnet. 
a)
battery
b)
copper wire
c)
steel nail
d)
metallic magnet
35.
Why does a ball never bounce back to the exact same height it was dropped from?
a)
Bill Nye said so
b)
Law of conservation of matter
c)
Law of conservation of energy
d)
You can never have more kinetic than potential energy 
36.
All metal objects are magnetic. 
a)
False
b)
True
37.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator 
c)
Resistance 
d)
Conductor 
38.
A material in which electrons are not able to move easily 
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
39.
Electric current that flows in only one direction. 
a)
Voltage 
b)
Direct Current 
c)
Alternating Current
d)
Series Circuit 
40.
According to this law, the current in a circuit equals the voltage difference divided by the resistance. 
a)
Law of Conservation of Energy 
b)
Ohm's Law 
c)
Law of Conservation of Charges
d)
Newton's First Law 
41.
The current has only has one loop to flow through in this circuit. 
a)
Series Circuit 
b)
Parallel Circuit 
42.
This circuit contains two or more branches for current to move through. 
a)
Series Circuit 
b)
Parallel Circuit 
43.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
44.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
45.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
46.
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.
47.
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
48.
Which statement best describes the circuit in the diagram?
a)
It is a series circuit.
b)
It is a parallel circuit.
c)
There are 2 paths.
d)
The circuit is opened.
49.
Which statement best describes the circuit in the diagram?
a)
If one light goes out the other light will also go out because it is a series circuit.
b)
There is only 1 path.
c)
If one light goes out the other light will stay on because it is a parallel circuit.
d)
The circuit is opened.
50.
The image on the left is a 
a)
series circuit
b)
parallel circuit
c)
a weird circuit
51.
The image on the right is a 
a)
series circuit
b)
parallel circuit
c)
looks like the number 8
52.
What kind of circuit is this?
a)
series
b)
parallel
53.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
54.
The picture shows an electrical circuit. This circuit is a series circuit because: 
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current has more than one path to flow through
55.
What type of circuit is this?
a)
Parallel Circuit
b)
Series Circuit 
c)
Open Circuit 
d)
Transverse Circuit
56.

What is the buildup of electric charges on an object called?

a)

Static Charge

b)

Current

c)

Circuit Charge

d)

Electricity

57.

The steady flow of electrons through a conductor is _____________________.

a)

An insulator

b)

Resistance

c)

An electric current

d)

Open Circuit

58.

True or False: As resistance increases in an electrical circuit, the current increases

a)

True

b)

False

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