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WorksheetsCurrent Electricity
Total questions: 26
Worksheet time: 27mins
Name
Class
Date
1.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal screw
d)
a wooden handle
2.
In a series circuit with 4 bulbs:
a)
a switch is never used
b)
all of the bulbs become dimmer if another bulb is added
c)
There are many paths for electricity to take
d)
the remaining 3 bulbs stay lit if one burns out
3.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
4.
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.
5.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
6.
What happens to the brightness of the light bulbs in a series circuit when you add more lights.
a)
Each bulb gets dimmer
b)
Each bulb remains the same
c)
Half of the bulbs get dimmer
d)
Each bulb gets brighter
7.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
8.
What part of a circuit is this object?
a)
energy source
b)
energy receiver
c)
electrical conductor
d)
switch
9.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
10.
Which best describes a parallel circuit?
a)
Electricity flows along one pathway.
b)
The flow of electricity comes from more than one source.
c)
Electricity flows along more than one pathway.
d)
The flow of electricity comes from more than 1 load.
11.
The flow/movement of electric charges
a)
Voltage
b)
Resistance
c)
Current
d)
Circuit
12.
Insulator or Conductor?
STEEL
STEEL
a)
Insulator
b)
Conductor
13.
Insulator or Conductor?
STYROFOAM
STYROFOAM
a)
Insulator
b)
Conductor
14.
A __________opens and closes a circuit?
a)
key
key
key
b)
magnet
c)
switch
d)
electromagnet
15.
How does a transformer help electricity get to your home?
a)
They fight Optimus Prime.
b)
Transformers create the electricity for your home.
c)
Transformers carry the electricity to your home.
d)
Transformers lower the power of the electricity so it can enter your home.
16.
How many volts of electricity comes through a typical wall outlet in your home?
a)
9 volts
b)
10,000 volts
c)
120 volts
d)
60,000 volts
17.
What part of a circuit is this object?
a)
Energy source
b)
energy receiver
c)
energy transfer device
d)
switch
18.
What is the purpose of a switch?
a)
To open and close the circuit.
b)
To carry the electricity through the circuit.
c)
To make a fun clicking sound
d)
To supply the power to the circuit
19.
What are the components of a simple circuit?
a)
wires, switch, outlet
b)
battery, switch, motor
c)
wires, light bulb, motor
d)
wires, battery, light bulb
20.
Why are humans conductors?
a)
Humans are made of mostly water.
b)
Humans have a ton of metal in their bodies.
c)
Humans conduct the railroad.
d)
Humans are great at the electric slide.
21.
If two batteries are in a circuit and the positive side is touching the positive side will the circuit work?
a)
Yes
b)
No
22.
What is an example of an electric receiver?
a)
wires
b)
d cell
c)
switch
d)
motor
23.
What kind of circuit is this?
a)
series
b)
parallel
24.
Is this circuit open or closed?
a)
Closed
b)
Open
25.
When switch is turned on the circuit is?
a)
Open
b)
Closed
26.
What kind of energy is the electricity transferred into in a toaster?
a)
sound
b)
light
c)
heat
d)
light and heat
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