A light wave hits a mirror and bounces off. What happened to the light wave?
It was reflected.
What does the lens do for the eye?
It bends and focuses light into an image that you can see.
A glass of water
Transparent
These waves are used to make images of bones and teeth in your body.
X-rays
Name a device other than a radio that uses radio waves to send signals.
Cell phone, walkie-talkie, television stations, Internet satelites
A light wave through a prism and was bent in a different direction. What happened to the light wave?
It was refracted.
What does the optic nerve do for the eye?
It sends messages about light to your brain to be decoded.
A cardboard box
Opaque
These waves are used to heat up your food.
Microwaves
What part of a radio takes in the radio waves?
Antenna
A light wave hits a piece of black cloth and is no longer visible. What happened to the light wave?
It was absorbed.
What does the pupil do for your eye?
It lets light into your eye.
Tissue paper
Translucent
These waves come from the sun and can damage your skin.
Ultraviolet waves
What part of a radio turns radio waves into a a message that we can hear?
Receiver
What causes a pair of pants to appear blue?
What does the retina do for your eye?
It receives the image from your lens.
Most solids
Opaque
These waves are used to transmit information and music.
Radio waves
What part of a radio sends out radio signals?
Transmitter
Why does black clothing get warmer than white clothing in the sunlight?
Because it absorbs more sunlight.
Somebody suddenly turns out the lights in a room. What part of your eye will respond to this change?
The pupil
Name one thing in each category. You may not use previous answers.
Answers may vary.
These waves can be used to kill cancer cells.
Gamma rays
What are the two types of signals and which one does a computer use?
Digital and analog. Computers use digital.