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Unit 8 Waves Test Review

Total questions: 60

Worksheet time: 49mins

Name
Class
Date
1.
What happens when a mechanical wave travels through a medium?
a)
Waves are transferred
b)
Energy is transferred
c)
Mass is transferred
d)
Particles are transferred
2.
Amplitude reflects the amount of ____________________ in a wave.
a)
energy
b)
compression
c)
rarefaction
d)
speed
3.
The units for frequency are measured in _____________.
a)
hertz
b)
seconds
c)
m/s
d)
m
4.
What property of this wave is represented by the letter "A"
a)
amplitude
b)
crest
c)
trough
d)
wavelength
5.
The highest point on a wave is:
a)
the crest
b)
the trough
c)
the top
d)
the coast 
6.
The lowest point on a wave is the:
a)
Amplitude
b)
Crest
c)
Trough
d)
Wavelength
7.
The number of wavelengths that pass a point each per second is:
a)
frequency
b)
period
c)
longitudinal 
d)
transverse wave 
8.
When the frequency of a wave increases, what happens to the wavelength?
a)
The wavelength is not directly affected by the frequency of a wave.
b)
The wavelength increases.
c)
The wavelength decreases.
d)
More specific information is needed to form a conclusion about the wavelength.
9.
Which of the following can sound travel through?
a)
solid
b)
liquid
c)
gas
d)
all of the above
10.
What is the speed of a sound wave that has a frequency of 250 hertz and a wavelength of 8 meters? 
a)
31 m/s
b)
250 m/s
c)
2000 m/s
d)
5280 m/s
11.
How many waves are in this wave chain?
a)
6
b)
3
c)
4
d)
5
12.
A wave has wavelength of 10 m and a speed of 340 m/s. What is the frequency of the wave?
a)
34 m/s
b)
3400 Hz
c)
3400 m/s
d)
34 Hz
13.
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's
a)
concussion. 
b)
amplitude. 
c)
reflection.
d)
frequency. 
14.
If the distance represented by the letter A were increased, how would it change the way the sound was heard?
a)
The sound would be higher. 
b)
The sound would be lower. 
c)
The sound would be softer. 
d)
The sound would be louder. 
15.
What does pitch depend on?
a)
amplitude 
b)
frequency
c)
intensity 
d)
volume of sound
16.
A wave with a large wavelength will have a ______ frequency and _____ energy
a)
high, low
b)
high, high
c)
low, high
d)
low, low
17.
Material (matter) through which a wave travels
a)
medium
b)
Doppler Effect
c)
sound
d)
pitch
18.

Which of the following is the speed of a wave traveling with a wavelength λ, frequency f, and period T?

a)

v=λfv=\frac{\lambda}{f}

b)

v=fλv=\frac{f}{\lambda}

c)

v=λ⋅fv=\lambda\cdot f

d)

v=f⋅Tv=f\cdot T

e)

v=fTv=\frac{f}{T}

19.

A wave travels on a string of length L, linear density µ, and tension T. Which of the following is true?

a)

The wave speed is inversely proportional to the tension T

b)

The wave speed is directly proportional the linear density µ

c)

The wave speed increases with increasing tension T

d)

The wave speed increases with increasing linear density

e)

The wave speed only depends on the length of the string

20.

What type of interference is being shown in the picture?

a)

Constructive

b)

Destructive

21.

What type of interference is occurring in the picture?

a)

Constructive

b)

Destructive

22.

Bouncing of a light ray when it strikes a reflecting surface is called.........

a)

Refraction

b)

Dispersion

c)

Reflection

d)

Diffraction

23.

Which of the following is a concave mirror?

a)
b)
c)
d)
24.

Which letter best represents the angle of incidence?

a)

A

b)

B

c)

C

25.

Which letter best represents the angle of reflection

a)

A

b)

B

c)

C

26.

Which letter best represents the normal line?

a)

A

b)

B

c)

C

27.

If the angle of incidence in the diagram is 50 degrees, which statement is true?

a)

The angle of reflection is 40 degrees because is is measured from the normal line, which is 90 degrees

b)

The angle of reflection is 50 degrees because it is equal to the angle of incidence.

c)

The angle of reflection is 60 degrees, because it is greater than the angle of incidence.

d)

The angle of refraction is 50 degrees, because it is equal to the angle of incidence.

28.

Select all statements that are true.

a)

Sunlight is all colors, but appears white.

b)

White light is a combination of all colors of light.

c)

White light has no colors of light.

d)

A spectroscope will separate white light so you can see all the colors.

29.

A student looks at a paper and sees that it is white.

What color(s) is being reflected by the white paper?

a)

All colors

b)

No colors

30.

A student looks at a shirt and sees that it is green.

What color(s) are being absorbed by the green shirt?

a)

All other colors except green

b)

Green

31.

Refraction occurs when a wave .....

a)

goes from one medium to another

b)

bounces off another medium

c)

changes direction within a medium

d)

is reflected by another medium

32.

Visible light waves have a wavelength between...

a)

30 millimeters - 1 millimeter

b)

10 nanometers - .01 nanometers

c)

700 nanometers - 400 nanometers

33.

When light falls on a smooth polished surface, most of it

a)

is reflected in the same direction

b)

is reflected in different directions

c)

is scattered

d)

is refracted into the second medium

34.

The type of mirror used in reflector in automobile lights is

a)

Plane mirror

b)

Concave mirror

c)

Convex mirror

d)

None of the above

35.

Why does the straw appear to be bent?

a)

light is reflected

b)

light is absorbed

c)

light is turned

d)

light is refracted

36.
Glass has a _____________ index of refraction than air.
a)
Equal
b)
Greater
c)
Less
d)
Impossible to say
37.
How is light affected by an increase in the index of refraction?
a)
Its frequency increases
b)
Its frequency decreases
c)
Its speed increases
d)
Its speed decreases
38.

When light waves bounce off of a smooth surface at the same angle of incidence in which they hit the surface we call this:

a)

Diffuse Reflection

b)

Specular Reflection

c)

Diffuse Refraction

d)

Specular Refraction

39.

When light waves bounce off of a rough object and are scattered in all directions we call this:

a)

Specular Reflection

b)

Specular Refraction

c)

Diffuse Reflection

d)

Diffuse Refraction

40.
When the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passes
a)
pitch
b)
frequency
c)
Doppler Effect
d)
medium
41.
High Amplitude =__________________
a)
Louder sounds
b)
Quieter Sounds
42.

If someone is standing to the left of this wave, they would hear a ______ pitch than someone standing to the right of it.

a)

uglier

b)

prettier

c)

higher

d)

lower

43.

Sound Waves Move faster in what temperature

a)

Hot

b)

Cold

c)

Doesn't Matter

d)

Both

44.

Name the mirror that curves inwards

a)

plane mirror

b)

convex mirror

c)

concave mirror

d)

spherical mirror

45.

Is a convex lens thicker or thinner in the middle?

a)

thicker.

b)

thinner.

46.

Which of the following situation represents the path of a parallel light ray correctly in a concave lens? (Think about the answer in Q.9)

a)
b)
c)
d)
47.

How much of the electromagnetic spectrum is made up of visible light?

a)

A small portion of it

b)

Most of it

c)

All of it

d)

None of it

48.

Which electromagnetic waves are used by doctors to detect broken bones inside your body?

a)

X-Rays

b)

Gamma Rays

c)

Ultraviolet Rays

d)

Infrared Rays

49.

Which has the SHORTEST wavelength and therefore the highest frequency/most energy? Hint: These waves are also used in cancer treatments.

a)

Gamma Rays

b)

Radio Waves

c)

Ultraviolet Rays

d)

X-rays

50.

Which EM waves have the longest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

51.

Which EM waves have the shortest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

52.

Which EM waves are invisible? (more than one correct answer)

a)

radio

b)

visible

c)

ultraviolet

d)

gamma rays

53.

Which of the following has the shortest wavelength?

a)

microwaves

b)

UV rays

c)

Infrared

d)

the color blue

54.

Which of the following has the least amount of energy?

a)

UV rays

b)

The color yellow

c)

infrared

d)

Gamma rays

55.

Which of the following has the highest frequency?

a)

TV

b)

Microwaves

c)

the color indigo

d)

ultraviolet rays

56.

Which of the following has the lowest energy?

a)

The color yellow

b)

The color blue

c)

The color indigo

d)

The color orange

57.

Quasars are extremely distant celestial bodies. Investigators using a special telescope determined that a certain quasar was emitting waves with a frequency of 1.41 x 109 Hz. Using the electromagnetic spectrum provided, investigators were most likely using a telescope that detects -

a)

microwaves

b)

visible light

c)

x-rays

d)

gamma rays

58.

Scientists observed a celestial object emitting a wavelength of 3 x 10-10m. What type of telescope did the scientists have to use to view this?

a)

Radio wave

b)

Infrared ray

c)

X-ray

d)

Gamma Ray

59.

Scientists observed a celestial object emitting waves with a frequency of 1.41 x 108 Hz. What type of telescope did the scientists have to use to view this object?

a)

Radio wave

b)

Microwave

c)

X-ray

d)

Ultraviolet wave

60.

The wavelength of an infrared ray is --

a)

10-5 m

b)

1012 Hz

c)

105 m

d)

10-12 Hz

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