Frequency
Wavelength
Hertz
Period
In Phase
Out of Phase
Interference
Diffract
Sonic Boom
Constructive
340 m/s
Fighter Jet
landslide
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
13)
14)
15)
16)
17)
18)
19)
20)
21)
Destructive
Indonesia
Tsunami
Whip
Earthquake
Compression
Japan
Rarefaction
Crest
Recede
Trough
Doppler Effect
Vibrations
Higher
Longitudinal
Lower
Transverse
Pitch
Increase
Decrease
Amplitude
Standing Wave
Simple Harmonic Motion
harbor wave
0
1
Node
Antinode
Tacoma Narrows Bridge
Resonance
Beats
Natural Frequency
Red
Blue
Loudness
medium
Beats
2
2.5
3
Is the speed of sound always constant? No
The top of a wave is called what? crest
This occurs when an object travels faster than the speed of sound? Sonic boom
How much is the speed of sound? 340 m/s
This occurs when an object vibrates at its natural frequency? Standing wave/resonance
Two waves are considered to be ____in phase_______ when they are lined up crest with crest,
trough with trough.
*In a 10 m long slinky there are 2.5 complete waves. What is the wavelength of each of the
waves?
4m
A sound wave is this type of wave
longitudinal
An extremely destructive Tsunami occurred here on Christmas Eve in 2004. Indonesia
This handheld device can easily produce sonic booms. Whip
This refers to the amount of time it takes for one full wave to pass. Period
The lowest point on a wave is called the__Trough______
In a standing wave, this refers to a point in which destructive interference is occurring and no
motion occurs. Node
The low pressure region of a sound wave is called a _______rarefaction________.
The unit for frequency is____hertz_____
If something was travelling at a speed close to the speed of light and it was headed toward you
that object would appear this color. Blue
These occur when two close frequencies are sounded near each other. Beats
This term refers to the height of a wave. Amplitude
A clear warning that a tsunami is on its wave towards you is if you see the shoreline do this….
recede
Noise cancelling headphones use the principle of ________desctructive interference
___________ to create a silent environment for their user.
For a given set of waves, if frequency is increased this will happen to wavelength. Decreae
22) The speed of a wave depends only on the ____medium__________.
23) Surface waves in the ocean are this type of wave. Transverse waves / surface waves
24) A set of waves have a frequency of 10 Hz and a wavelength of 2 meters, what is the speed of the
waves? 20 m/s
25) Name two things that make sonic booms? Whips, jets, rockets, etc.
26) A ___transverse_______ wave occurs when the medium vibrates in a direction perpendicular to
the direction of the wave
27) A ____longitudinal______ wave occurs when the medium vibrates in a direction parallel to the
direction of the wave
28) This is the point of maximum displacement in a standing wave. Antinode
29) Waves do this when they bend around a barrier. Diffract
30) The frequency of the sound waves from a motorcycle as it approaches you will be
___higher_____ than normal
31) The pitch of the sound waves from a motorcycle as it moves away from you will be
_____lower_____ than normal.
32) A ____standing wave____ is created when a wave begins to interact with its own reflection and
the illusion of a wave that doesn’t move is created.
33) A certain wave has a frequency of 4 Hz, what is its period? .25 sec
34) The purpose of break walls along the shore line demonstrates what property of a wave.
Diffraction
35) The loudness of a sound correlates to this property of a wave. Amplitude
36) T or F. The higher a waves amplitude the faster it will go. False
37) Every elastic object has its own _________ natural frequency ___________ that it can vibrate at
to create standing waves and resonance is exhibited.
38) All waves are caused by these. vibrations
39) This term refers to the phenomenon of the pitch of a sound changing as an object approaches
and then moves away from a listener. Doppler Effect
40) What beside an underwater earthquake could cause a tsunami. landslide
41) What does tsunami mean in Japanese harbor wave
42) How many full waves is this (draw picture) ………
43) When something travels faster than the speed of sound this is created. Sonic boom
44) In spring of 2011 there was an Earthquake that caused a massive Tsunami in this country,
causing thousands of deaths and billions in damage. Japan
45) This is a general term referring to any motion that is regularly repeating such as that of a
pendulum, spring, or wave. Periodic Motion…. Simple Harmonic Motion
46) *If a wave is 8 m tall from trough to crest, what is its amplitude? 4 m
47) You are standing on a dock and 20 waves pass you in a time of 5 seconds, what is the frequency
of the waves? 4 hz
48) *What state was the Tacoma Narrows Bridge in? Washington
49) How many full waves is this (draw picture) …………..
50) Making a slinky tighter (more rigid) will do what to the speed of the pulses traveling through it.
increase