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Electricity
By Mr Pike
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Last updated about 11 hours ago
15 questions
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Question 1
1.
What is the basic unit of electricity?
Watt
Ohm
Ampere
Joule
Question 2
2.
Electric current travels at the speed of light.
True
False
Question 3
3.
Which of these is a good conductor of electricity?
Plastic
Rubber
Copper
Wood
Question 4
4.
Which appliances work by using electricity?
Refrigerator
Television
Bicycle
Hammer
Question 5
5.
What does a switch do in an electrical circuit?
Changes the voltage
Controls the current
Increases resistance
Opens or closes the circuit
Question 6
6.
Which are sources of electrical energy?
Sun
Wind
Coal
River
Question 7
7.
All materials conduct electricity.
True
False
Question 8
8.
What does a resistor do in a circuit?
Increases the current
Reduces the current
Multiplies the voltage
Divides the voltage
Question 9
9.
Which are dangers of electricity?
Fire
Electrocution
Air pollution
Water pollution
Question 10
10.
The terms 'AC' and 'DC' refer to the direction of electric current.
True
False
Question 11
11.
Who is known as the 'father of electricity'?
Nikola Tesla
Michael Faraday
Thomas Edison
Benjamin Franklin
Question 12
12.
Which elements are considered good electrical conductors?
Gold
Copper
Iron
Silicon
Question 13
13.
Batteries convert chemical energy into electrical energy.
True
False
Question 14
14.
In a filament bulb, what provides resistance to the flow of electricity?
Metal cap
Base
Filament
Glass bulb
Question 15
15.
What are insulators?
Wool
Wood
Glass
Iron