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WorksheetsCurrent Electricity
Total questions: 15
Worksheet time: 17mins
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.
What part of a circuit is this object?
a)
power source
b)
load
c)
pathway
d)
switch
8.
Insulator or Conductor?
STEEL
STEEL
a)
Insulator
b)
Conductor
9.
Insulator or Conductor?
STYROFOAM
STYROFOAM
a)
Insulator
b)
Conductor
10.
A __________opens and closes a circuit?
a)
key
key
key
b)
magnet
c)
switch
d)
electromagnet
11.
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
12.
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
13.
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.
14.
Is this circuit open or closed?
a)
Closed
b)
Open
15.
When switch is turned on the circuit is?
a)
Open
b)
Closed
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