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WorksheetsElectric Circuits
Total questions: 23
Worksheet time: 23mins
Name
Class
Date
1.
Which will light a bulb?
a)
A battery and a paper clip
b)
A battery and a wire
c)
A paper clip and a wire
d)
A switch and a wire
2.
Where does electricity enter and exit the bulb?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 1
3.
Which part of the bulb gives off light?
a)
1
b)
2
c)
3
d)
4
4.
Lightbulbs use electricity to make light. What else do lightbulbs often give off?
a)
Food energy
b)
Heat Energy
c)
Solar Energy
d)
Wind Energy
5.
Which bulbs will light?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 2
6.
Look at the drawing. What is the wire?
a)
A conductor
b)
A receiver
c)
An insulator
d)
An energy source
7.
One D size battery produces 1.5 volts. How many total votes would 20 D-cell batteries produce?
a)
7.5 volts
b)
30.0 volts
c)
21.5 volts
d)
35.5 volts
8.
Leo built a circuit tester. Which describes objects that complete the circuit?
a)
Batteries
b)
Conductors
c)
Diodes
d)
Insulators
9.
Which best describes objects that can complete a circuit?
a)
Most are silver in color
b)
Most are thick and smooth
c)
Most are made of metal
d)
Most are long and flexible
10.
In the picture, what powers the circuit?
a)
1
b)
2
c)
3
d)
4
11.
In the picture, which is the receiver (receiving the electricity)?
a)
1
b)
2
c)
3
d)
4
12.
In the picture, 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 charge
13.
In the picture, 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
14.
In the hidden circuit box, you saw that #2 and #5 were connected with a piece of wire. Also, #2 and #7 were connected. If you closed the box and used your circuit tester to touch #5 and #7, the bulb would light.
a)
True
b)
False
15.
Drew built a lightbulb model. Which best describes the purpose of the filament?
a)
To connect the bulb to the base
b)
To glow and make light
c)
To hold up the support wires
d)
To make the pathway from the battery
16.
Which of these symbols represents a switch? Select the symbol for a switch from the choices provided.
a)
A
b)
B
c)
C
d)
D
17.
Which diagram shows two bulbs in a series?
a)
1
b)
2
c)
3
d)
4
18.
Which do you expect to have the brightest light?
a)
1
b)
2
c)
3
d)
4
19.
Look at the drawing. Which best describes the switch?
a)
Closed
b)
Open
c)
Parallel
d)
Series
20.
How is the switch used?
a)
Insulates the wires
b)
Makes the lightbulb brighter
c)
Turns the lightbulb on and off
d)
Warms up the lightbulb
21.
Lola built a flashlight. Which describes Lola's flashlight?
a)
Bright light with batteries that burn out quickly
b)
Bright light with batteries that last a long time
c)
Dim light with batteries that burn out quickly
d)
Dim light with batteries that last a long time
22.
How does a diode change an electric circuit?
a)
The electricity can move in 2 directions
b)
The electricity moves much faster
c)
The electricity only moves backwards
d)
The electricity travels only in one direction
23.
Which circuit diagram matches this picture of a circuit?
a)
A
b)
B
c)
C
d)
D
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