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WorksheetsElectricity Sample Quiz
Total questions: 60
Worksheet time: 1hrs 19mins
Which of these materials is a good insulator?
gold
copper
silver
plastic
In a series circuit, what will happen if the path for the electrical current is broken by a burned out bulb?
The electrical current will stop fllowing and none of the bulbs will light up.
The electrical current will continue flowing and the other bulbs will light up.
The energy source will continue to move the electric charge through the circuit.
Which of the following is a good conductor?
copper
rubber
dry wood
glass
Which type of circuit has more than one path for the electrical current?
The series circuit
The parallel circuit
They both have more than one path
Neither circuit has more than one path for the electrical current
The tendency for a material to oppose the flow of electrons is _____.
current
resistance
conductor
voltage
Items with opposite charges _____ each other.
attract
repel
move
none of the above
Items with like charges _____ each other.
attract
repel
move
none of the above
An instrument used to measure potential difference is a(n) _____.
Voltmeter
Generator
Ammeter
Transformer
Resistance is measured in a unit called _____.
ampere
ohm
volt
coulomb
Potential difference is measured in a unit called _____.
ampere
ohm
volt
coulomb
Electric current is measured in a unit called _____.
ampere
ohm
volt
coulomb
An instrument used to measure electric current is a(n) _____.
Voltmeter
Generator
Ammeter
Transformer
Is the symbol for _____.
Light bulb
Resistor
Battery
Switch
A good conductor is a material that does not allow electricity to flow through it.
True
False
Select the items needed to have a complete circuit.
Energy source (battery)
Wires
Energy user (lightbulb)
Voltmeter
Switch
Which of the following are examples of conductors?
Copper
Plastic
Glass
Aluminum foil
Pencil lead
Which of the following are examples of insulators?
Copper
Plastic
Glass
Aluminum foil
Pencil lead
Is the image shown a series or a parallel circuit?
series
parallel
In the image, what type of circuit is shown?
series
parallel
What type of circuit is shown in the image?
series
parallel
What type of circuit is shown in the image?
series
parallel
Are the lights on in this circuit?
yes, the lights are on
no, the lights are off
In the bottom of the picture, what explains why the balloons are repelling each other?
opposites attract
like charges in the balloon are repelling each other
the helium has negative charges
What is a complete closed path that electrical currents travel?
circuit
switch
resistance
battery
What voltage is needed to cause a 50A current flow through a 10Ω resistor?
15V
500V
500 kV
0.2V
In a series circuit what happens when you add another bulb?
The bulbs gets brighter
The bulbs gets dimmer
Nothing changes
A kilowatt (kW) is how many watts?
10
50
100
1000
Calculate the voltage applied when a 60 watt light-bulb uses a current of 5 amps
300 volts
30 volts
12 volts
0.08 volts
Heater is 240V and 2200W. What is the suitable fuse rating for the heater?
10 A
13 A
3 A
5 A
Your oven has a power of 5000 watts. How many kilowatts is this?
(a)
What is the power rating of a home appliance (in kilowatts) that uses 8 amps of current plugged into a 120 Volt outlet?
(a)
Ohms
Watts
Why is a battery important in an electrical circuit?
As a source of energy.
As a path for electricity to flow through.
As a connector to connect all parts of a 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.
Electric motors are devices that convert __________energy into __________ energy.
electricial; mechanical
chemical; potential
mechanical; electrical
mechanical; kinetic
