WorksheetsPhysical Science 2: Milestone Electricity/Magnetism Review
Total questions: 20
Worksheet time: 7mins
Name
Class
Date
1.
Wanda's dad wired new lights for her playground. When he thought everything was connected, he turned on the switch and nothing happened. What could be the problem?
a)
He put too many lights and switches in the circuit.
b)
He needed to connect more batteries to the circuit
c)
He made a mistake that caused an open circuit.
d)
He should have wired the circuit in parallel.
2.
When several light bulbs are connected in a series circuit, what will happen if one bulb burns out?
a)
All of the light bulbs will go out.
b)
The other bulbs will continue to burn.
c)
The other bulbs will burn together.
d)
There will be a short circuit.
3.
Marta has a radio in her room. It requires electricity in order to play. Which of the following is necessary in order for electricity to move from the source to the radio?
a)
a circuit
b)
a magnet
c)
a light bulb
d)
an insulator
4.
When electricity moves through a metal wire, the wire is
a)
a generator
b)
an insulator
c)
a generator
d)
a conductor
5.
Which material conducts electricity?
a)
piece of glass
b)
cotton t-shirt
c)
rubber ball
d)
copper coin
6.
To have an electric current when using batteries, there MUST be a
a)
switch
b)
lightbulb
c)
complete circuit
d)
motor
7.
Which term refers to the flow of electrical charges?
a)
conductance
b)
resistance
c)
current
d)
energy
8.
Which of these is a conductor?
a)
a short length of string
b)
a plastic drinking straw
c)
a piece of aluminum foil
d)
a piece of chalk
9.
Why does plugging in and turning on a hair dryer make it operate?
a)
light energy can be converted into heat and wind
b)
electrons have a complete circuit to travel
c)
heat energy can be transferred from a power station
d)
the flow of electricity is now stopped and can be contained
10.
Which components could complete an electric circuit?
a)
wire, bulb, switch
b)
battery, bulb, switch
c)
battery, wire, switch
d)
battery, wire, bulb
11.
Two students design a circuit that includes a switch, battery, and light bulb all directly connected by wires. Before flipping the switch, what could the students do to BEST ensure that it will work?
a)
clean the wire
b)
check the brightness of the bulb
c)
reverse the direction of the wires
d)
make sure there is a complete path
12.
Larry connects a wire from a battery to each of the listed items. Which item would allow a current from the battery to pass through if connected to another wire on an opposite end?
a)
wooden door
b)
rubber ball
c)
brass door knob
d)
cotton shirt
13.
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
14.
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
15.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
16.
What is the metal center of an electromagnet called?
a)
The current
b)
the wire
c)
the coil
d)
the core
17.
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
18.
What is magnetism?
a)
invisible objects coming together
b)
a force that either attracts or repels certain materials
c)
full of electricity
d)
metals
19.
What is true about electricity and magnetic fields?
a)
Electricity is needed to create any magnet.
b)
Electricity always creates a magnetic field.
c)
Electricity is stronger than a magnetic field.
d)
Electricity prevents magnetic fields from occurring.
20.
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.
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