WorksheetsUsing Electricity
Total questions: 25
Worksheet time: 18mins
Which example below shows electricity being converted into mechanical energy?
a motor in a kitchen appliance
lightening
clapping
plugging in a lamp
In a speaker, electricity flows through a wire inside of a coil, which causes the _____ to move back and forth (vibrate).
wire
coil
When a speaker coil begins to vibrate, other parts begin to vibrate as well. This vibration is what produces ___ energy that you hear.
light
sound
thermal
One type of lightbulb uses a ____ which is a thin piece of wire that heats up and glows.
glass
screw
filament
speaker
When a filament wire uses electricity, it converts that electricity into ___ and light energy.
sound
thermal
mechanical
What kind of light bulb has chemical compounds that glow from electricity?
filament light bulbs
fluorescent light bulbs
dark light bulbs
invisible light bulbs
What is the name of the heating elements on stoves and heaters?
light bulb
air conditioner
fluid
resistor
Refrigerators and air conditioners use electricity to pump ___ through pipes.
fluid
oxygen
ice
In a refrigerator, electricity changes into ___ energy because the fluid is flowing.
mechanical
sound
light
The mechanical energy made by the moving fluid in a refrigerator removes ___ energy by absorbing it into the fluid. This keeps the air cool.
thermal
sound
PICK 2: The law of "conservation of energy" says that energy cannot be ___ or ___. It simply changes form.
grabbed
created
destroyed
touched
PICK 3: A computer converts electrical energy into what 3 other types of energy?
nuclear
light
sound
mechanical (fan)
How are you feeling about online learning and everything you have to do for school?
I have everything under control!
Sometimes I get stressed out, but usually, I'm ok.
I am barely surviving...there's a lot going on.
I hate online learning. I feel lost all the time!
What do you like to do to destress from school?
True / False -- All the objects we use every day need electricity to work
True
False
Which of these materials is a good conductor of electricity?
Rubber
Metal
Newspaper
Glass
PICK 2: Which of the following items would conduct electricity?
Aluminum ladder
Metal screwdriver
Wooden baseball bat
Rubber flip flops
PICK 3: Which of the following materials are best used as insulators?
Wood
Rubber
Metal
Plastic
Pick whichever is your favorite!
something else
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
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
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
Who is the scientist that created the lightning rod?
Michael Faraday
Thomas Edison
Benjamin Franklin
George Washington
