What harmful waves from the sun can cause sunburn?
Ultra-Violet Rays
100
Which part of the eye is the part that blocks dust and dirt?
The Cornea
100
What is the cochlea filled with??
fluid
100
What is the angle of reflection also known as?
Angle of incidence
100
What is the top of a wave called?
A crest
200
what rays are released in a nuclear explosion and also used to treat cancers?
gamma rays
200
What does the iris do?
The iris controls how much light enters the pupil.
200
ALL of the cilia's in your ear die away at one point in your life. True or False
False
200
What lens magnifies, but makes you see less?
What is convex lens
200
What is the amplitude of the wave?
The height of the wave from middle to the top (or middle to the top)
300
What wave is used for television and radio stations?
Radio waves
300
What is the job of the optic nerve
It turns the image from the retina into electricity and takes that to the brain where the brain turns the image right side up and interprets it into a picture
300
What lens is most commonly used in eye glasses?
What is concave lenses
300
What type of wave needs a medium in order to travel?
A Mechanical wave
400
True or False- The iris is the bone that controls how much light goes out of the pupil
false
400
your eardrum hits the hammer which hits the anvil which strikes the....