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Electricity and Magnetism

Total questions: 70

Worksheet time: 1hrs 9mins

Name
Class
Date
1.

Atoms that have a positive charge will be ATTRACTED to atoms with a ___________ charge.

a)

positive

b)

negative

c)

neutral

2.

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

a)

Magnetic

b)

Electric

c)

Electromagnetism

3.

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

a)

Magnetic

b)

Electric

c)

Electromagnetism

4.

In a magnet the opposite poles will ___________.

a)

attract

b)

repel

5.

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

a)

stronger

b)

weaker

6.

Electric charges that DO NOT move through a current are known as

a)

Magnetic

b)

Electric

c)

Electromagnetism

d)

Static Electricity

7.

What makes an electromagnet stronger?

a)

greater number of loops

b)

smaller number of loops

c)

decreasing the current

d)

decreasing the voltage

8.

An example of an electromagnet

a)

water bottle

b)

paper

c)

motor

d)

glass

9.

current flowing through a wire is surrounded by a/an

a)

force field

b)

magnetic force

c)

nothing

10.

electrons have this type of charge

a)

positive

b)

negative

c)

neutral

11.

protons have this type of charge

a)

positive

b)

negative

c)

neutral

12.

when the number of electrons matches the number of protons, the atom's charge is...

a)

positive

b)

negative

c)

neutral

13.
What is a wire in a circuit wrapped around an iron core called?
a)
electromagnet
b)
generator
c)
electric motor
14.
If a light bulb is added to a circuit and it turns on, what can we say about this circuit?
a)
open
b)
incomplete
c)
unbroken 
d)
off
15.
What is a complete path through which electric charges can flow called?
a)
magnetic pole
b)
electric circuit 
c)
electric resistance
d)
magnetic field 
16.
What do you make if you wrap a current-carrying wire around an iron bolt?
a)
electromagnet
b)
electric motor
c)
generator
17.
What is the region of force around a magnet known as?
a)
magnetic field
b)
magnetic pole
c)
magnetic domain 
d)
lodestone
18.
A pathway for electricity to travel is called___________
a)
current
b)
static electrcity
c)
circuit
d)
circle
19.
A continuous flow of electricity is called_____________
a)
series
b)
circuit
c)
static
d)
current
20.
What kind of circuit is this?
a)
series
b)
parallel
21.
In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?
a)
TRUE
b)
FALSE
22.
What is this?
a)
magnet
b)
electromagnet
c)
series circuit
d)
parallel circuit
23.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
24.
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
25.
When socks get stuck to towels in your dryer, this is an example of________________
a)
current electricity
b)
static electricity
26.
Choose the vocabulary word that matches this definition:
an object that attract iron
a)
conductor
b)
static electricity
c)
magnet
d)
circuit
27.
Choose the vocabulary word that matches this definition:
an electrical charge that builds up in an object
a)
magnet
b)
conductor
c)
insulator
d)
static electricity
28.
What is a good conductor of electricity?
a)
copper
b)
glass
c)
plastic
d)
rubber
29.
What is a stream of electrons moving through a copper wire called?
a)
current electricity
b)
light bulb
c)
series circuit
d)
motor
30.
Why are electrical cords covered in plastic or rubber?
a)
Because plastic and rubber are insulators which keeps us safe
b)
because it looks nicer
c)
because all wires must have plastic or rubber
d)
because they won't melt
31.
Why is current electricity more useful than static electricity?
a)
because current electricity is safer
b)
because you can switch off current electricity
c)
because you can control current electricity 
d)
because it's faster than static electricity 
32.
Put the following event about lightning in the correct sequence:
1.  The ice crystals gain negative charges
2. Lighting is seen
3. Ice crystals in a thunder cloud run together.
4. The ground loses negative charges, so it is left with a positive charge. 
5.Negative charges move from the cloud to the ground. 
a)
3, 1, 4, 5, 2
b)
3, 1, 5, 4, 2
c)
1, 5, 3, 4, 2
d)
1, 3, 4, 5, 2
33.

In which of the following circuits will all of the remaining light bulbs go out if bulb 3 burns out?

a)
b)
c)
d)
34.

Which object does NOT conduct electricity?

a)

copper wire

b)

iron nail

c)

salt water

d)

wood

35.

Irene bought a new house and has decided to rewire it. She wants to be able to turn

some lights off and have the others remain lit. What type of circuits should she use and

why?

a)

She should use parallel circuits because when one light turns off, the other lights remain lit.

b)

She should use series circuits because when one light turns off, the other lights remain lit.

c)

She should use parallel circuits because when one light turns off, the others turn off, too.

d)

She should use series circuits because when one light turns off, the others turn off, too.

36.

An electric current flows in a wire. What is one result?

a)

a magnetic field is created

b)

any nearby magnetic fields are destroyed

c)

nearby magnets lose their strength

d)

the metal of the wire cannot be affected by magnets

37.

What happens if there is a break at any point in a series circuit?

a)

no current flows

b)

current flows through an alternative path

c)

resistance goes to infinity

d)

current reverses direction

38.

Dave notices that a wire is magnetic and attracts metal objects, What can be concluded about the wire?

a)

an electric current is passing through it

b)

heat is passing through it

c)

radiation is passing through it

d)

sound waves are passing through it

39.

Which of the following would be a good conductor of electricity?

a)

plastic

b)

rubber

c)

cotton

d)

iron

40.

Which of the following is an example of a resistor?

a)

battery

b)

light bulb

c)

wire

d)

switch

41.

Which circuit will not light the bulb?

a)
b)
c)
d)
42.
Which of these would be the best material to make a wire for a simple circuit?
a)
Glass
b)
Plastic
c)
Copper
d)
Rubber
43.
If you held two magnets facing each other, one with the North pole and one with the South pole, would they attract or repel?
a)
Repel
b)
Attract
44.
The force that occurs when one object rubs against another object is called ________.
a)
Gravity
b)
Friction
c)
Magnetism
d)
Pull
45.
Which of these objects would be attracted to a magnet?
a)
nails
b)
wood
c)
paper
d)
gold
46.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Atoms
47.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
48.
A conductor allows energy to easily pass by.  
a)
True 
b)
False
49.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
50.
Iron, Nickel, Cobalt, and Steel are all __________________ materials
a)
Expensive
b)
Insulators
c)
Magnetic
d)
Cold
51.

What phrase should be at label 1?

a)

If it is closed, it flows.

b)

If it is open, it is broken.

c)

If it is closed, it is broken.

d)

If it is open, it is flows.

52.

What phrase should be at label 2?

a)

If it is closed, it flows.

b)

If it is open, it is broken.

c)

If it is closed, it is broken.

d)

If it is open, it is flows.

53.

Which description is accurate for the pictures on the top half of the diagram?

a)

The light bulbs will turn on.

b)

Some light bulbs will turn on

c)

The light bulbs will be off.

54.

Which description is accurate for the pictures on the bottom half of the diagram?

a)

The light bulbs will turn on.

b)

Some light bulbs will turn on

c)

The light bulbs will be off.

55.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
56.
If you replace the paper clip with a plastic spoon, what is the plastic spoon acting as?
a)
A conductor
b)
A diode
c)
An insulator
d)
A switch
57.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
58.
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 is divided between the three light bulbs.
59.
True or False: An insulator is a type of material that allows heat to escape from an object quickly.
a)
True
b)
False
60.
Prevents electric current from flowing.
a)
open circuit
b)
conductor
c)
electricity
d)
closed circuit
61.
A magnetic field created by an electrical current.
a)
open circuit
b)
electromagnetic field
c)
closed circuit
d)
electricity
62.
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
63.
True or False:
A magnet wrapped in cloth will attract paper clips.
a)
True
b)
False
64.
What are the parts of the magnet that is attracted to the paper clips?
a)
the center
b)
the poles
c)
the equator
d)
the horseshoe
65.
What happens when two items repel each other?
a)
They push together.
b)
They point to the North Pole.
c)
They should push apart.
d)
Their magnetic field gets bigger.
66.
True or False:
All metals stick to magnets.
a)
True
b)
False
67.
Which statement is true?
a)
All Magnets have a North and South Pole
b)
All magnets can attract large objects
c)
Magnets can not pull through Solids.
d)
All Magnets have the Same shape and Size
68.
Mr.  Novales makes a mixture of four solid materials.  Which of these 4 materials will a bar magnet be able to pull out?
a)
Rubber
b)
Sand
c)
Sugar
d)
Iron Fillings
69.

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

70.
What component becomes a temporary magnet when electricity is flowing through the circuit?
a)
d -cell
b)
wire coil
c)
switch
d)
core

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