Energy 1
What is electricity?
A. energy created by vibrations
B. energy that moves in waves
C. energy that moves through wires
D. energy that moves through wind
C. energy that moves through wires
What is light?
A. energy that moves through wires
B. energy that moves in waves
C. energy created by vibrations
D. energy that moves through wind
B. energy that moves in waves
What is sound?
A. energy that moves through wires
B. energy that moves in waves
C. energy created by vibrations
D. energy that moves through wind
C. energy created by vibrations
How do objects become visible?
A. They make vibrations.
B. An animal sees them.
C. Water makes them wet.
D. Light reflects off of them.
D. Light reflects off of them.
Which type of energy does a plant use?
A. electricity
B. heat
C. light
D. sound
C. light
How might a scientist collect data to prove that sound comes from vibrations?
A. Shine a light on a mirror.
B. Turn on the air conditioner.
C. Pull the plug out of a socket.
D. Put sand on top of a speaker.
D. Put sand on top of a speaker.
True or False:
Many plants use electricity to capture sunlight.
False
Why is it hard to see in a dark room?
A. Movement can not make vibrations.
B. There is no light to reflect off of objects.
C. All of the heat has been transferred out.
D. The electrical energy has been absorbed.
B. There is no light to reflect off of objects.
What would happen if all the plants died?
A. Volcanoes could not erupt.
B. There would be no animals.
C. The Earth would cool down.
D. The water cycle would stop.
B. There would be no animals.
Elephants use their feet to feel vibrations from other elephants many miles away.
How might two students in a classroom communicate through vibrations?
If two students connected a cup to the end of the same long tube, they could communicate to each other from across the room, even if they whisper. The sound vibrations would travel through inside the tube and carry all the way to the other person.
Describe one way you have converted electricity into a different form of energy today.
I used my flat iron/hair straightener, which is powered by electricity and converts into heat/thermal energy in order to be able to straighten hair.