Waves Question Preview (ID: 44586)


This Is To Help Review For A Unit Test On Light And Sound. TEACHERS: click here for quick copy question ID numbers.

What is frequency?
a) how tall a wave is
b) the distance from one crest to another
c) the bottom part of a wave
d) how many waves are passing during a certain time ( how fast it is vibrating)

How do vocal cords produce a sound?
a) by rubbing together when you breathe in air
b) by vibrating when you breathe it
c) when air from your lungs vibrate them
d) when air from your lungs exits the mouth

What do a trumpet, a drum, and a flute have in common?
a) they all create sounds by vibrations
b) they all make sounds that have the same pitch
c) they all make sounds that are the same amplitude
d) they all have to be rubbed together to make a sound

Why does sound travel slowest through a gas?
a) because the molecules are so close together it makes it hard to travel
b) because the molecules are moving so fast it is hard for the sound to travel.
c) because the molecules are very well separated making it take longer to travel.
d) because the molecules have no energy to help the sound travel.

What is the relationship between frequency and pitch?
a) the lower the frequency the higher the pitch
b) the higher the frequency the higher the pitch
c) the lower the frequency the higher the pitch
d) the higher the frequency the lower the pitch

Which property of sound determines how LOUD it is?
a) the frequency
b) the wavelength
c) the amplitude
d) the pitch

If transverse waves have crests and troughs, what do sound waves have?
a) compressions and rarefactions
b) compressions and reflections
c) reflections and refractions
d) rarefactions and reflections

Which of the following items will absorb the most light?
a) a white piece of notebook paper
b) a black beach towel
c) a piece of clear translucent glass
d) piece of aluminum foil

How do people see things?
a) light absorbs into our eyes where we see things.
b) Light reflects off an object and enters the eye.
c) Light shines right in our eyes from the sun where the brain makes sense of it.
d) light refracts into our eyes where we see things.

What parts of the eye are responsible for focusing light?
a) cornea and pupil
b) pupil and iris
c) iris and retina
d) cornea and lens

Which of the following best explains why grass is green?
a) Grass reflects all colors except green.
b) Grass absorbs all colors except green which it reflects.
c) Grass only absorbs green light from the sun.
d) Grass transmits green from the sun.

Which part of the eye is responsible for receiving light and changing it into electrical signals?
a) the cornea
b) the pupil
c) the lens
d) the retina

What type of wave is a SOUND wave?
a) transverse
b) electromagnetic
c) longitudinal
d) reflection

Objects appear different in size and shape when placed in water due to....
a) refraction of the light waves
b) the water blocking the light waves
c) diffraction of the light waves
d) eflection of the light waves.

What part of the ear takes the electrical signal to the brain?
a) the optic nerve
b) the auditory nerve
c) the cochlea
d) the retina

What part of the ear changes the sound vibration into an electrical signal?
a) the optic nerve
b) the auditory nerve
c) the cochlea
d) the retina

What is the relationship between the electromagnetic spectrum and visible light?
a) humans can see all parts of the spectrum
b) humans can see NONE of the spectrum
c) humans can see visible light and ultraviolet light
d) humans can only see visible light

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