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Waves
Test Description: This is to help review for a unit test on light and sound
Instructions: Answer all questions to get your test result.
1) Objects appear different in size and shape when placed in water due to....
A
eflection of the light waves.
B
the water blocking the light waves
C
refraction of the light waves
D
diffraction of the light waves
2) What type of wave is a SOUND wave?
A
electromagnetic
B
longitudinal
C
transverse
D
reflection
3) Which part of the eye is responsible for receiving light and changing it into electrical signals?
A
the cornea
B
the retina
C
the lens
D
the pupil
4) Which of the following best explains why grass is green?
A
Grass transmits green from the sun.
B
Grass only absorbs green light from the sun.
C
Grass absorbs all colors except green which it reflects.
D
Grass reflects all colors except green.
5) What parts of the eye are responsible for focusing light?
A
cornea and pupil
B
cornea and lens
C
pupil and iris
D
iris and retina
6) How do people see things?
A
Light shines right in our eyes from the sun where the brain makes sense of it.
B
Light reflects off an object and enters the eye.
C
light refracts into our eyes where we see things.
D
light absorbs into our eyes where we see things.
7) If transverse waves have crests and troughs, what do sound waves have?
A
reflections and refractions
B
compressions and rarefactions
C
compressions and reflections
D
rarefactions and reflections
8) Which of the following items will absorb the most light?
A
a white piece of notebook paper
B
piece of aluminum foil
C
a piece of clear translucent glass
D
a black beach towel
9) Which property of sound determines how LOUD it is?
A
the wavelength
B
the frequency
C
the pitch
D
the amplitude
10) What is the relationship between frequency and pitch?
A
the lower the frequency the higher the pitch
B
the higher the frequency the lower the pitch
C
the lower the frequency the higher the pitch
D
the higher the frequency the higher the pitch
11) 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 very well separated making it take longer to travel.
C
because the molecules have no energy to help the sound travel.
D
because the molecules are moving so fast it is hard for the sound to travel.
12) What do a trumpet, a drum, and a flute have in common?
A
they all make sounds that have the same pitch
B
they all make sounds that are the same amplitude
C
they all create sounds by vibrations
D
they all have to be rubbed together to make a sound
13) How do vocal cords produce a sound?
A
when air from your lungs exits the mouth
B
by vibrating when you breathe it
C
by rubbing together when you breathe in air
D
when air from your lungs vibrate them
14) What is frequency?
A
how many waves are passing during a certain time ( how fast it is vibrating)
B
the bottom part of a wave
C
how tall a wave is
D
the distance from one crest to another
15) What part of the ear takes the electrical signal to the brain?
A
the cochlea
B
the retina
C
the optic nerve
D
the auditory nerve
16) What part of the ear changes the sound vibration into an electrical signal?
A
the cochlea
B
the auditory nerve
C
the retina
D
the optic nerve
17) What is the relationship between the electromagnetic spectrum and visible light?
A
humans can see visible light and ultraviolet light
B
humans can see NONE of the spectrum
C
humans can only see visible light
D
humans can see all parts of the spectrum
*select an answer for all questions
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