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Light Sound State Testing Review
Test Description: Light and Sound Unit Review.
Instructions: Answer all questions to get your test result.
1) Darla puts her ear against a door and hears sounds from the other side of the door. What happens when sound waves travel through a material, such as a door?
A
None of the other answer choices
B
They change volume
C
They stop vibrating
D
They vibrate the particles in the material
2) What is a characteristic of light?
A
All of the other answer choices
B
It can move through empty space.
C
It travels in waves.
D
It is a form of energy.
3) How does a beam of light travel after it has reflected off a mirror?
A
In a straight line
B
In two opposite directions
C
It stops traveling
D
In many different directions
4) Which of the following best describes what happens to light when it hits the surface of a pool?
A
None of the other answer choices
B
It slows and bends at the point where it passes from air to water.
C
It speeds up and moves in a straight line as it passes into the water.
D
It slows down and changes direction, bouncing off the surface of the water.
5) Marisol can see her sister through a glass door, but she appears fuzzy with no details. The glass door must be made of
A
reflective material.
B
translucent material.
C
opaque material.
D
transparent material.
6) As the frequency of a sound wave increases, the pitch
A
becomes louder.
B
becomes higher.
C
becomes lower.
D
becomes softer.
7) How do white light waves act when they enter a prism?
A
They bend or refract.
B
They become raindrops.
C
They are reflected.
D
They are absorbed.
8) Which of the following can act like a prism?
A
a radio
B
a piece of paper
C
a raindrop
D
a laser
9) Which form of energy is carried only by vibrations through air, water, or other form of matter?
A
Mechanical energy
B
Sound energy
C
Electrical energy
D
Light energy
10) You and your friend create a string phone using two cups and a piece of string about six meters long. If you have trouble communicating through the cups, what should you do?
A
Talk quieter into the cup.
B
Make the string less tight by standing closer together.
C
Make the string tighter by standing farther apart.
D
Use smaller cups.
11) Refraction occurs when a light wave
A
is taken in by an object.
B
bounces back off an object or a surface.
C
changes into heat.
D
bends as it moves from one medium to another.
12) Jonas plucks the strings of his guitar. Each of the strings has the same thickness and length, but a different tightness. Which statement correctly describes how the guitar strings will sound?
A
The tightest string will make the highest sound. The loosest string will make the lowest sound.
B
The tightest string will make the softest sound. The loosest string will make the loudest sound.
C
The tightest string will make the loudest sound. The loosest string will make the softest sound.
D
The tightest string will make the lowest sound. The loosest string will make the highest sound
13) Why is a banana yellow?
A
Yellow is the color light that is bounced off the banana.
B
Yellow is the color light that is refracted by the banana.
C
None of the other answer choices
D
Yellow is the color light that is absorbed by the banana.
14) A guitarist strums two strings of the same thickness on a guitar. The first string vibrates more quickly than the second. What is true about the pitch of the strings?
A
The pitch of the second string depends on the pitch of the first string.
B
The first string and the second string have the same pitch
C
The second string has a higher pitch than the first string
D
The first string has a higher pitch than the second string
15) Which of the following would provide evidence that white light is made up of different colors?
A
shining a flashlight on a prism
B
shining a flashlight on a piece of paper
C
shining a flashlight on a mirror
D
shining a flashlight on a window
*select an answer for all questions
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