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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
They stop vibrating
B
None of the other answer choices
C
They vibrate the particles in the material
D
They change volume
2) What is a characteristic of light?
A
It can move through empty space.
B
It is a form of energy.
C
All of the other answer choices
D
It travels in waves.
3) How does a beam of light travel after it has reflected off a mirror?
A
It stops traveling
B
In a straight line
C
In two opposite directions
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 down and changes direction, bouncing off the surface of the water.
C
It slows and bends at the point where it passes from air to water.
D
It speeds up and moves in a straight line as it passes into 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
translucent material.
B
transparent material.
C
reflective material.
D
opaque material.
6) As the frequency of a sound wave increases, the pitch
A
becomes louder.
B
becomes lower.
C
becomes higher.
D
becomes softer.
7) How do white light waves act when they enter a prism?
A
They are absorbed.
B
They bend or refract.
C
They become raindrops.
D
They are reflected.
8) Which of the following can act like a prism?
A
a piece of paper
B
a laser
C
a radio
D
a raindrop
9) Which form of energy is carried only by vibrations through air, water, or other form of matter?
A
Electrical energy
B
Mechanical energy
C
Light energy
D
Sound 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
Use smaller cups.
D
Make the string tighter by standing farther apart.
11) Refraction occurs when a light wave
A
bounces back off an object or a surface.
B
bends as it moves from one medium to another.
C
is taken in by an object.
D
changes into heat.
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 softest sound. The loosest string will make the loudest sound.
B
The tightest string will make the lowest sound. The loosest string will make the highest sound
C
The tightest string will make the highest sound. The loosest string will make the lowest sound.
D
The tightest string will make the loudest sound. The loosest string will make the softest sound.
13) Why is a banana yellow?
A
None of the other answer choices
B
Yellow is the color light that is absorbed by the banana.
C
Yellow is the color light that is bounced off the banana.
D
Yellow is the color light that is refracted 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 first string has a higher pitch than the second string
B
The second string has a higher pitch than the first string
C
The first string and the second string have the same pitch
D
The pitch of the second string depends on the pitch of the first string.
15) Which of the following would provide evidence that white light is made up of different colors?
A
shining a flashlight on a piece of paper
B
shining a flashlight on a mirror
C
shining a flashlight on a prism
D
shining a flashlight on a window
*select an answer for all questions
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