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21 questions
_____?_____ materials allow ALL light waves to pass through easily.
Opaque
Transparent
Translucent
When you yell in a canyon, you hear an echo of your voice. Why is this?
The sound waves are absorbed by the walls of the mountains.
The sound waves are reflected by the walls of the mountians.
The sound waves are transmitted through the walls of the mountains.
Which letter shows a wave being reflected?
A
B
C
Which letter shows a wave being transmitted?
A
B
C
Refraction occurs in glass when
Light bends towards the normal
Light bends away from the normal
Which part of the electromagnetic spectrum is visible to the human eye
Infrared
Gamma
Ultraviolet
Visible Light
The Compression part of a sound wave is when
The particles are closer together
The particles are spread apart
The particles are moving faster
The particles are moving slower
The "Normal" is always represented on an angle of __________ to the surface of the object
45
90
180
360
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