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Chapter 15 Exam Review
Chapter 15 Exam Review
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Answers
1
If a question provides a given frequency in KHz you must use _________.
Scientific Notation
Standard Form
Directional Analogy
Your old buddy, Dimensional Analysis
2
Which represents the energy of the wave?
B
A
D
C
3
A ________ lens would assist someone with far-sightedness.
Concord
Condor
Concave
Convex
4
What part of a wave is letter B representing?
Rarefaction
Extension
Compression
Diffraction
5
What is the human perception of intensity called?
Volume
Frequency
Amplitude
Loudness
6
What kind of wave requires a medium?
Microwave
X-ray
Mechanical Wave
Electromagnetic Wave
7
What is the unit for wave speed?
s
V
m/s
λ
8
Round 12.5367 to one place after the decimal
12.53
12.6
12.5
12.54
9
Which color of visible light has the longest wavelength?
Red
Green
Blue
Yellow
10
Which is an example of a longitudinal wave?
Light waves from a desk lamp
Guitar string vibration
Speaking into a microphone
Ripples on the surface of water
11
What is the symbol for frequency?
m/s
Hz
λ
f
12
A higher-pitched sound is caused by sound waves of higher frequency.
True
False
13
A wave is moving toward shore with a velocity of 17.0 m/s. If its period is 3 s, what is its wavelength?
0.057 m
51 m
5.67 m
0.176 m
14
What is the speed of light?
3,000,000,000 m/s
3 x 10 m/s
30,000,000 m/s
300,000,000 m/s
15
What is the human perception of intensity called?
Loudness
Power
Volume
Decibel
16
What type of wave is this picture representing?
Equilibrium
Transverse
Longitudinal
Water
17
Why is there no sound in outer space?
Because there is no Humberto
Because there is no energy
Because there is no light
Because there is no medium
18
What part of a wave is letter C representing?
Crest
Amplitude
Trough
Length
19
What is the symbol for wave speed?
m/s
V
λ
s
20
Your eyes have specialized ______ that allow you to see dim light.
Retina
Rods
Pods
Cones
21
What is Simple Harmonic Motion?
The number of waves produced in a given amount of time
A repetitive rhythmic motion
The distance from any point on a wave to an identical point on the next one
The time that it takes a complete cycle or wave oscillation to occur
22
The jacket string example from class was used to describe _________.
Standing waves
Pitch changes
Simple Harmonic motion
The doppler effect
23
Solve for frequency: Do Not Round Period = 8 s
0.125 Hz
8 f
0.13 Hz
8 Hz
24
The highest point of a wave is called the _______.
Trough
Crest
Rooster
Peak
25
Reflection is when a wave strikes and then ______________.
Bends out
Disperses
Explodes
Bounces off
26
Light shining in a room through a cracked open door is an example of ___________.
Reflection
Diffraction
Refraction
Kachow
27
If I increase the intensity, I _______ the loudness.
Decrease
Increase
Minimize
Equilize
28
The lowest point of a wave is called the _______.
Crest
Dip
Cow
Trough
29
What is the unit for wavelength?
λ
m
m/s
Hz
30
What is the combination of two or more waves that results in a single wave?
Adding
Interference
Quick Maff
Destruction
31
When two speakers are turned toward each other and powered on, they sound louder, This is an example of ____________.
obstructive interference
destructive interference
structive interference
constructive interference
32
Waves that occur at the boundary between two different mediums are known as _____________.
Electromagnetic waves
Mechanical waves
Surface Waves
Pyrokinetic Waves
33
What part of a wave is letter A representing?
Amplitude
Crest
Trough
Length
34
Find the speed of a wave that is 10 m long and has a frequency of 4 Hz.
0.4 m/s
0.25 m/s
2.5 m/s
40 m/s
35
What is the formula for wave speed, given period?
v = f x λ
c = f x λ
c = λ/T
c = T/λ
36
What is the formula for frequency, given period?
λ = 1/f
f = 1 / λ
f = λ/T
f = 1/T
37
Constructive interference decreases amplitude
False
True
38
Visible light can be broken down into ROYGBIP
False
True
39
Rainbows are an example of _______.
Fraction
Refraction
Reflection
Diffraction
40
What is the speed of a wave with a wavelength of 2 m and a frequency of 9 Hz?
4.5 m/s
9.8 m/s
18 m/s
0.11 m/s
41
What is the formula for wave speed, given frequency?
v = f x λ
c = f x λ
c = λ/T
c = T/λ
42
The shortest wavelength on the EMS is the _______.
Infrared ray
Microwave
Sting ray
Gamma ray
43
If a question provides a given period in years you must convert to _________.
hrs
m
s
min
44
Your eyes have specialized ______ that allow you to distinguish color.
Cones
Pods
Rods
Retina
45
Which is not an example of a standing wave?
Subwoofer
Slingshot
Bow and Arrow
Guitar
46
When looking at a banana, all colors are absorbed with the exception of ________.
green
blue
red
yellow
47
Refraction is when a wave strikes and then ______________.
Bounces off
Explodes
Disperses
Bends out
48
The colors of visible light are:
Red, Orange, Pink, Green, Blue, Indigo, and Violet.
Cyan, Yellow, Green, Blue, Teal, Red, and Violet.
Orange, Yellow, Blue, Indigo, Violet, Red and Green
Red, Orange, Yellow, Green, Blue, Indigo, and Purple.
49
Which two letters would represent a wavelength?
C-D
A-C
A-B
B-C
50
Which color of visible light has the shortest wavelength?
Red
Blue
Yellow
Green
51
Kinetic theory explains differences in wave speed
False
True
52
What is the middle line of the wave is this picture representing?
Medium
Equilibrium
Transverse
Longitudinal
53
Justin/Luke/Adrian: "Mr.C! I just Aced your test, it was EC-PC!" What would Mr. C respond:
Ah ha ha
That's absolutely bonkers
I believe you
Cap
54
The movement of these differ in transverse and longitudinal waves.
Charges
Particles
Kachow
Forces
55
Solve for wave speed:Round to 1 place after the decimal Period = 5.3 s Wavelength = 27.2 m
144.2 m/s
5.1 m/s
5.1 v
144.2 v
56
Each loop of a standing wave is separated from the next loop by points that have no vibration, called _________.
Trough
Nodes
Crests
Antinodes
57
Kachow?
True
False
58
A ________ lens would assist someone with near-sightedness.
Convex
Concord
Concave
Condor
59
A friend is 3 m away, he strikes two tuning forks-at 241 Hz & 257 Hz- at the same time, which will reach your ear first?
They never reach
The 241 Hz fork
The 257 Hz fork
They reach you at the same time
60
What is the amplitude of a wave?
The number of waves produced in a given amount of time
Max distance that the particles of a wave’s medium vibrate from rest
The time that it takes a complete cycle or wave oscillation to occur
The highest point of a wave
61
The degree of highness or lowness of a sound; related to frequency and increases as frequency increases.
Pitch
Frequency
Loudness
Volume
62
What is the unit for frequency?
f
m/s
Hz
λ
63
Diffraction is when a wave strikes and then ______________.
Explodes
Bends out
Disperses
Bounces off
64
In a longitudinal wave, the particles of the medium vibrate ___________ to the wave's motion.
Transversely
Perpendicular
Parallel
Transcontinentally
65
What is the formula for period, given frequency?
T = λ/f
λ = 1/f
T = 1 / λ
T = 1/f
66
The part of the standing wave that moves and reaches a point of maximum vibration is known as the ___________.
Antinode
Node
Crest
Anticrest
67
Destructive interference decreases amplitude
True
False
68
A wave is traveling at a speed of 14 m/s and its wavelength is 350 cm. Calculate the wave’s frequency.
49 Hz
0.25 Hz
0.04 Hz
4 Hz
69
Which color of visible light has the highest frequency?
Yellow
Blue
Green
Red
70
The Doppler Effect explains that a higher-pitched sound is caused by sound waves of _______.
lower amplitude
higher frequency
lower sequence
higher period
71
You hear sounds of racecars driving along a race track change as they near you. This is an example of the _____
Surface waves
Simple harmonic motion
Doppler Effect
Helicopter - Helicopter
72
Which is an example of a transverse wave?
ripples on the surface of water
Clapping your hands
Music Woofers
Speaking into a microphone
73
What is the symbol for period?
P
S
T
m/s
74
A wave is a disturbance that carries energy through matter or space.
False
True
75
The distance between which two letters on the wave image represent a wavelength?
A-B
C-D
D-E
B-D
76
What part of a wave is letter B representing?
Trough
Crest
Length
Amplitude
77
A pencil seeming to bend in a cup of water is an example of ___________.
Diffraction
Magic
Refraction
Reflection
78
What is 0.0000003562 decades if we were setting it to the proper unit for period?
1123.312
1.872
112.331
18.722
79
If a wave has a period of 20 s, what is its frequency?
20 f
0.05 Hz
20 Hz
0.05 f
80
What does sound travel fastest through?
Plasma
Liquids
Gas
Solids
81
When two waves of slightly different frequencies interfere with each other, they produce _______.
Beats
Frequencies
Pitch
Catch
82
The ___________ explains differences in wave speed in a given medium.
Doppler Effect
Potential theory
Frequency
Kinetic theory
83
What is frequency a measure of?
The time that it takes a complete cycle or wave oscillation to occur
The highest point of a wave
The number of waves that pass a given point in 1 second
The amount of time it takes one wavelength to pass a given point
84
What is the symbol for wavelength?
W
m/s
λ
Hz
85
What kind of wave does not require a medium?
Water Wave
Mechanical Wave
Electromagnetic Wave
Surface Waves
86
Which color of visible light has the shortest frequency?
Blue
Yellow
Red
Green
87
What part of a wave is letter C representing?
Diffraction
Relection
Rarefaction
Compression
88
What type of wave is this picture representing?
Educational
Longitudinal
Gravitational
Transverse
89
The wave with the lowest energy on the EMS is the ________.
Light wave
Gamma ray
Microwave
Radio wave
90
__________ are where waves cancel out when opposite waves come into contact in a standing wave.
Crests
Nodes
Peaks
Antinodes
91
Round 12.5367 to two places after the decimal
12.537
12.54
12.536
12.53
92
Which pair of values are inversely proportional?
f & λ
T & v
f & T
λ & v
93
In a transverse wave, the particles of the medium vibrate ___________ to the wave's motion.
Perpendicular
Transcontinentally
Longitudinally
Parallel
94
What is the period of a wave?
The number of waves that pass a given point in 1 second
The amount of time it takes one wavelength to pass a given point
The time that it takes a complete cycle or wave oscillation to occur
The highest point of a wave
95
The pitch change of an ambulance as it nears an observer is known as ________.
Simple Harmonic Motion
The Doppler Effect
The Carbonaro Effect
Relative Intensity
96
Round 12.5367 to the whole number
12
12.53
12.54
13
