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WorksheetsElectricity Unit Test
Total questions: 33
Worksheet time: 23mins
What is current measured in?
Ω (Ohms)
W (Watts)
A (Amps)
V (Volts)
What is resistance measured in?
Ω (Ohms)
W (Watts)
A (Amps)
V (Volts)
What is power measured in?
Ω (Ohms)
W (Watts)
A (Amps)
V (Volts)
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
V= I x R
25 V
10 V
2.5 V
0.4 V
What is the resistance of a circuit that has a 12 V battery and a current of 2 A?
V= I x R
24 Ω
0.17 Ω
3 Ω
6 Ω
Electricity that flows in a closed path is called a
current
circuit
light
path
A moving flow of electrons, much like a moving flow of water, is called what?
Voltage
Resistance
Current
Battery
Identify the type of Circuit.
Series
Parallel
Complex
Static
Identify the type of Circuit.
Series
Parallel
Complex
Static
A material through which electric current passes easily is called a/an ___.
conductor
insulator
resistance
switch
A material through which electric current does NOT pass easily is called a/an ___.
conductor
insulator
resistance
switch
This symbol represents a
a battery
switch
fuse
bulb
This symbol represents a
a battery
switch
fuse
bulb
resistor
This symbol represents a
a battery
resistor
fuse
bulb
switch
An electric heater works by passing a current of 100 A through a coiled metal wire, making it red hot. If the resistance of the wire is 1.1 ohms, what voltage must be applied to it?
110 V
90.9 V
0.011 V
A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current is passing through the circuit?
1.2 Amps
120 Amps
0.8 Amps
An alarm clock draws 3 A of current when connected to a 120 volt circuit. Calculate its resistance.
40 Ω
360 Ω
0.025 Ω
The bulb ___________ light up.
will
will not
The bulb ___________ light up.
will
will not
The bulb ___________ light up.
will
will not
Look at the picture shown.
Which part of the bulb should connect to the battery?
1 and 2
1 and 3
3 and 4
2 and 4
What is a circuit with several paths for electricity to flow?
conductor
series circuit
parallel circuit
open circuit
The diagram shows a complete circuit but the bulb did not light up. Why?
The plastic spoon is an insulator of electricity and prevented electric current from flowing through the circuit.
The plastic spoon is not connected properly and prevented electric current from flowing through the circuit.
The plastic spoon is a conductor of electricity and prevented electric current from flowing through the circuit.
Why electrical wiring usually are covered with a layer of plastic?
To make it look pretty
To help electricity flow along the wire
To make it safe
To add more energy
If light bulb C burns out, what will happen?
none of the lights will work
light bulbs A and B will continue to work
light bulb B will work, but A will not
light bulb A will work, but B will not
If light bulb C burns out, what will happen?
light bulb B will still work but A will not
none of the light bulbs will work
light bulb A will still work but B will not
light bulbs A and B will continue to work
