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WorksheetsElectric Circuits
Total questions: 25
Worksheet time: 9mins
What is an electrical circuit?
a whole bunch of wires
a broken path that electric charges can flow
a circuit board
a complete, unbroken path through which electric charges flow
When a switch is open...
the circuit is working and gives energy
the circuit is broken and charges cannot flow
the battery gets discharged
excessive current flows in the circuit
What is a parallel circuit?
a continuous loop
a circuit with one path
a circuit with multiple branches for each individual appliance or light
in which all components are connected end to end, one after the other
Will this circuit light the bulbs?
Yes, both will light up
Yes, but only the one on the right
Yes, but only one on the left
No, neither of the bulbs will light up
Is this a working circuit?
Yes
No
I'm not sure, I would need to test it myself.
What is a switch's function in a circuit?
to make the current hotter or colder
turn on and off the flow of current
to provide the pathway to the current
to add more power to the circuit
This is the symbol for a _____?
an AC current source
a switch
a battery
a single cell
Identify the symbol
Closed push switch
open switch
Weighing scales
Fuse
This type of circuit only has one path for current to flow.
series
parallel
combination
open
1. Which switch or switches must be closed to make the lamps light?
Only switch 1
Only switch 1
Switches 1 and 2
Switches 1 , 2 and 3
Tammy makes a complete simple circuit with one bulb and three batteries. The bulb lights for an instant and then goes out. Why?
Too much electricity flows through the bulb's filament
Not enough electricity flows around the circuit
The batteries are flat
The batteries are not good
Which diagram shows two bulbs in a series?
1
2
3
4
Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?
Only the white bulb will operate
None of the bulbs will operate
Only the white and yellow bulbs will operate
Only the red and blue bulbs will operate
A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?
Light bulb 1 and light bulb 2 will both be on
Light bulb 1 will be off, but light bulb 2 will be on
Light bulb 1 and light bulb 2 will both be off
Light bulb 1 will be on, but light bulb 2 will be off
Look at the four ways that you could connect a battery, a paper clip, a light bulb, and some wire.
Which one of these would light the bulb?
The circuit in this picture has a battery, a light bulb, and three switches. All of the switches are open, and the light bulb is off.
Which of these combination of switches could be closed and cause the light bulb to remain off?
X and Y
Y and Z
X and Z
X, Y,, and Z
