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WorksheetsElectricity!!
Total questions: 20
Worksheet time: 13mins
Why do electricians always wrap wires in plastic?
Plastic comes in many different colors
Plastic is a good electrical conductor
Plastic makes the wires easy to bend
Plastic is a good electrical insulator
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
The student conducted an experiment with circuits. Why was the bulb bright when he closed the switch?
The switch produced an electric current
Closing the switch broke the circuit
Closing the switch completed the circuit
The switch did not make a difference
Which of the following items would conduct electricity?
Aluminum ladder
Metal screwdriver
Wooden baseball bat
Rubber flip flops
How can it be explained that someone's hair can stick to a balloon?
There is static electricity
There is too much dust in the air
A parallel circuit was too long
The person needs to wash his hair
A penny is an example of
An insulator
an electron
a proton
a conductor
which of the following materials are best used as insulators?
Wood
Rubber
Metal
Plastic
The student arrived home and turned on a light switch, so she could see how to get to her bedroom. The switch allowed electricity to flow and was transformed into-
Light energy
mechanical energy
superior energy
radiant energy
In this picture, the iron filings show the shape of the magnetic -
pole
core
field
axis
Which contribution toward understanding electricity was made by Michael Faraday?
Created the first electric power generator
Discovered that lightning carried electricity
Concentrated on mass-producing long-lasting light bulbs
Improved the telegraph system
What contribution did Thomas Edison make toward the study of electricity?
He invented the light bulb
He invented a generator that would produce electricity
He discovered the nucleus of an atom
He discovered that lightning is a form of electricity
A science class was completing an experiment on electrical circuits. Why did the bulb go out each time the switch was opened?
Opening the switch broke the circuit
The battery was probably going flat
There was too much electricity flowing
Opening the switch closed the circuit
Which would make the strongest electromagnet?
A battery with 4 wire coils around a nail
A battery with 6 wire coils around a nail
A battery 10 wire coils around a nail
A battery with 8 wire coils around a nail
Electricity used to operate a toaster or stove is transformed to -
Potential energy
Mechanical energy
Superior energy
Radiant energy
Many electrical wires are wrapped with a plastic coating because plastic is -
More dense than copper
Able to keep its shape
Less expensive than steel
A good insulator
After returning from a winter vacation, a boy wanted to heat his home using electricity. The electricity was transformed into -
Mechanical energy
Superior energy
Thermal energy
Light energy
The space around a magnet where the force of the magnet can act is called-
static electricity
lightning
a magnetic field
resistance
What force causes two metals to repel or attract?
Friction
Gravity
Magnetism
Electricity
Who is the scientist that created the lightning rod?
Michael Faraday
Thomas Edison
Benjamin Franklin
George Washington
Which book would most likely contain information about Michael Faraday?
All About the Light Bulb
Thunderstorm Power
The History of Generators
Radios, Photographs, Tape Players and Compact Disks - A Timeline of Sound
