WorksheetsElectric Circuits, Conductors, and Insulators
Total questions: 43
Worksheet time: 40mins
Name
Class
Date
1.
Batteries and power plants are examples of ______________.
a)
energy sources
b)
energy conduction
c)
energy transformation
2.
______________ are materials such as rubber that do not allow charges to flow.
a)
conductors
b)
circuits
c)
insulators
d)
amps
3.
A complete, unbroken path that charges can flow through is called an __________________.
a)
conductor
b)
electric circuit
c)
electric current
d)
insulator
4.
Metals such as copper and aluminum are good ______________.
a)
insulators
b)
conductors
c)
circuits
d)
charges
5.
A circuit with only one path for the current to flow is a __________________.
a)
parallel circuit
b)
series circuit
c)
mini circuit
d)
device
6.
The path of current in a circuit is always completed by _________________.
a)
a transformer
b)
an electrical device
c)
conducting wires
7.
__________________ is the continuous flow of electric charges through a material.
a)
Electric current
b)
Resistance
c)
Voltage
d)
Static Discharge
8.
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
9.
Where does electricity enter and exit the bulb?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 1
10.
Which bulbs will light?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 2
11.
Look at the drawing. What is the wire?
a)
A conductor
b)
A receiver
c)
An insulator
d)
An energy source
12.
Leo built a circuit tester. Which describes objects that complete the circuit?
a)
Batteries
b)
Conductors
c)
Diodes
d)
Insulators
13.
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
14.
In the picture, what powers the circuit?
a)
1
b)
2
c)
3
d)
4
15.
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
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.
Look at the drawing. Which best describes the switch?
a)
Closed
b)
Open
c)
Parallel
d)
Series
19.
A material that allows energy to easily flow through it.
a)
electricity
b)
conductor
c)
insulator
d)
heat
20.
A great conductor of energy is:
a)
cloth
b)
metal
c)
plastic
d)
wood
21.
Which is NOT an insulator?
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
22.
Is iron a conductor or an insulator?
a)
Conductor
b)
Insulator
23.
Which of the following always has a negative charge?
a)
a proton a proton
b)
an electron
c)
a battery a battery
d)
all of the above
24.
For electricity to flow, what do you need?
a)
only a battery
b)
only a battery and a light bulb
c)
only a battery, light bulb and wire
d)
a battery, light bulb and wire in a closed circuit
25.
Which of these is a closed circuit?
a)
b)
c)
26.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
27.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
28.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
29.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
30.
The plastic around the wire is
a)
conductor
b)
insulator
c)
decoration
31.
If the lights are on, the circuit is
a)
closed
b)
open
32.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
33.
A form of energy produced when electrons move from one place to another.
a)
Gravity
b)
Electricity
c)
Heat
d)
Solar
34.
What supplies the energy in a simple circuit?
a)
wires
b)
battery
c)
bulb
35.
Which material is a conductor?
a)
glass
b)
aluminum
c)
wood
36.
Which material is an insulator?
a)
gold
b)
copper
c)
plastic
37.
In most electrical circuits, the pathway is made of:
a)
Wood
b)
Plastic
c)
Metal
d)
Static
38.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
39.
Which statement is true?
a)
The light bulb will light up because the circuit is complete.
b)
The light bulb will light up because the circuit is broken.
c)
The light bulb will not light up because the circuit is complete.
d)
The light bulb will not light up because the circuit is broken.
40.
Choose the corrrect sentence.
a)
This circuit will work because it is an open circuit
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
41.
A student began building a circuit to light a bulb. What else does the student need to produce light?
a)
a battery that has energy
b)
a wire that is insulated
c)
a switch that is open
d)
another bulb of the same size
42.
An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —
To complete the circuit, a wire should be placed from —
a)
Point D to Point C
b)
Point B to Point C
c)
Point A to Point D
d)
Point B to Point D
43.
All wires used in electric circuits should be covered with:
a)
a colored material.
b)
a conducting material.
c)
an insulating material.
d)
none of these.
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