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Electricity and Magnetism Unit Review

Total questions: 35

Worksheet time: 48mins

Name
Class
Date
1.
Elements that are shiny and good conductors of electricity are _____.
a)
colloids
b)
metalloids
c)
metals
d)
nonmetals
2.
This is called an __________________.
a)
bomb
b)
circuit
c)
electromagnet
d)
coil
3.
The plastic covering on wires is there to:
a)
Provide a conductor for electrical energy to flow.
b)
Provide an insulator so that electrical energy will not pass outside of the wires.
c)
Provide a conductor so that electrical energy can NOT flow.
d)
Provide an insulator so that electrical energy can flow.
4.
What happens to the strength of an electromagnet as you add more coils around it?
a)
Increases
b)
Decreases
c)
Stays the same
d)
Stops completely
5.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one light goes out, they all go out! 
c)
It doesn't work properly.
d)
There are no problems. 
6.
This circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
7.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
8.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
9.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
emoji
10.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
stars in the heaven, worms in ground
11.
What does the zigzag line in the circuit diagram represent?
a)
an electrical resistor
b)
an open switch
c)
a source of electrical energy
d)
an electrical conductor
12.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
13.

Rubbing a balloon on your friend's head charges the balloon through ___________

a)

Friction

b)

Conduction

c)

Induction

14.

What causes charges on the ground to change leading up to a lightning strike?

a)

Negatively charged clouds cause charges in the ground to separate, making the surface positively charged.

b)

The ground is always positively charged

c)

The ground is always negatively charged

d)

Magic

15.

What is current electricity?

a)

Electricity that is stored up on the surface of a charged object.

b)

The flow of electrons through a circuit.

c)

Radio interference.

d)

The transfer of protons.

16.

A material that does not allow the flow of electrons is called an ________________

a)

Insulator

b)

Conductor

c)

Transistor

d)

Transformer

17.

A material that allows electrons to flow easily is called a ________________

a)

Insulator

b)

Conductor

c)

Transistor

d)

Transformer

18.

An electromagnet uses ...

a)

An electric current to produce a magnetic field

b)

A magnetic field to produce an electric current

c)

Mechanical energy to produce electrical energy

d)

Electrical energy to produce mechanical energy

19.

The opposite ends of a magnet are called ...

a)

The North and South Poles

b)

The Positive and Negative Ends

c)

Terminals

d)

Good and Evil

20.

Which type of charges will attract each other?

a)

Opposite charges

b)

Like charges

c)

Similar charges

d)

Disorganized charges

21.
The path current electricity follows is called a(n):
a)
Electron
b)
Insulator
c)
Circle
d)
Generator
e)
Circuit
22.
What causes clothes coming out of a dryer to crackle and to stick together?
a)
Elmer’s School Glue
b)
Static Electricity
c)
Current Electricity
d)
Magnetism
e)
Erosion
23.
Electric flows best through which of these substances
a)
Glass
b)
Rubber
c)
Copper
d)
plastic
e)
insulators
24.
An open circuit made with a battery can light up a bulb.
a)
true
b)
false
25.
Which are good insulators?
a)
Glass
b)
Rubber
c)
Copper
d)
Plastic
e)
Gold
26.
What do you not need to make an electromagnet?
a)
an iron core
b)
coils of wire or a conductor wrapped around a core
c)
a source of electricity
d)
a way to open and close the circuit
e)
a bell
27.
Magnetism created by an electric current
a)
electricity
b)
electromagnetism
c)
wind energy
28.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
29.
An example of a parallel circuit is
a)
the wiring in a house
b)
a flashlight
c)
a single circular path
30.
Which of the following is shown?
a)
electromagnet
b)
electric motor
c)
electric generator
d)
transformer
31.
The diagram below shows an electrical circuit. This circuit is a series circuit because
a)
it has three light bulbs.
b)
the same current flows through all three light bulbs.
c)
it uses a single battery.
d)
the current is divided between the light bulbs.
32.
What is a benefit of using a parallel circuit?  
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others. 
d)
If one light goes out, they all go out. 
33.
Overloading a circuit with too many appliances could cause overheating and fire.  
a)
True
b)
False
34.
Your body is a conductor of electricity.
a)
true
b)
false
35.
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

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