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Mechanical Waves
Mechanical Waves
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Mechanical Wave concepts and related vocabulary
Flashcards
37 cards
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Practice quiz
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Questions
37
Answers
1
How high or low a sound seems to be is called ______
doppler effect
amplitude
pitch
intensity
2
What kind of wave interaction do noise cancelling headphones use?
Constructive Interference
Refraction
Diffraction
Destructive Interference
3
True or False: A wave is NOT a physical thing
True
False
4
What wave interaction is pictured below?
Refraction
Diffraction
Reflection
Interference
5
This is an example of a
transverse wave
electromagnetic wave
longitudinal wave
compression wave
6
The distance between which two letters is a wavelength?
C-A
A-B
A-D
A-A
7
Increasing the amplitude of a sound wave is equivalent to increasing it's ________
frequency
pitch
speed
volume
8
What do seismic waves and sound waves have in common?
They're electromagnetic waves
They're permanent waves
They're phonetic waves
They're mechanical waves
9
Which of the following will increase the energy of a wave?
shorter wavelength, larger amplitude
longer wavelength, larger amplitude
longer wavelength, smaller aplitude
shorter wavelength, smaller amplitude
10
The reason we can tell musical instruments apart is because they have a unique ______
frequency
medium
waveform
amplitude
11
The average human ear can hear between ___________ hertz
20-20,000
100-1000
0-150
75-150,000
12
Which letter is marked at the troughs of the wave?
D
A
C
B
13
What is the name of the spiral structure in the inner ear that is responsible for sending sound signals to the brain?
Ear Drum
Coachella
Cochlea
Pinna
14
When two waves collide and increase the amplitude, it is called ____.
constructive interference
refraction
destructive interference
diffraction
15
Waves bouncing off of a satellite towards a focal point is an example of ______.
interference
reflection
diffraction
refraction
16
What wave interaction is pictured below?
Reflection
Diffraction
Interference
Refraction
17
How fast an object is moving in relation to the speed of sound can be described using the _______
frequency scale
mach scale
doppler effect
decibel scale
18
If the wavelength of a wave is 20 m and the frequency is 80 Hz, what is the speed of the wave?
1600 m/s
0.25 m/s
4 m/s
160 m/s
19
Which letter is marked at the crests of the wave?
A
B
D
C
20
There are 3 bones in the middle ear. They are the ________.
Hammer, Anvil, and Stirrup
Cochlea, Pinna, and Stirrup
Cochlea, Pinna, and Tibia
Tibia, Fibula, and Femur
21
The percieved change in pitch of a sound from a moving object can be described as ______
resonance
intensity
the mach scale
the doppler effect
22
True or false: A higher pitched sound will travel faster
True
False
23
A sound wave with a high frequency is
quiet
high pitched
loud
low pitched
24
What is the unit for frequency?
seconds
meters
m/s
Hz
25
How do you measure the amplitude of a longitudinal wave?
The width of one compression
Crest to trough
Crest to crest
Beginning of one compression to the beginning of another
26
If the frequency of a sound wave is 10 Hz and the speed is 750 m/s, what is the wavelength?
7.5
75
7500
0.1333
27
How do you measure the wavelength of a transverse wave?
Beginning of one compression to the beginning of another
Crest to trough
Trough to trough
Crest to crest
28
What types of mechanical wave is this?
Surface
Transverse
Longitudinal
29
Which of the following is NOT part of the outer ear?
Pinna
Ear canal
Ear Drum
Cochlea
30
What does it mean when a wave's amplitude increases?
Its wavelength gets longer
It's carrying more energy
Its frequency also increases
It's moving through a denser medium
31
What do waves carry from place to place?
Neither energy nor matter
Energy and matter
Matter, but not energy
Energy, but not matter
32
The distance a wave is from it's resting position is:
Mechanical Wave
Wavelength
Frequency
Amplitude
33
How do you measure the wavelength of a longitudinal wave?
Crest to crest
Crest to trough
The width of one compression
Beginning of one compression to the beginning of another
34
What scale is used to measure loudness?
decibel scale
mach scale
loudness scale
intensity scale
35
What is the unit for amplitude?
seconds
Hz
m/s
meters
36
A sound wave with a high amplitude is
quiet
loud
high pitched
low pitched
37
How much energy a sound transmits through a given area of medium is called ________
Frequency
Doppler Effect
Loudness
Intensity
