Types of Waves
Parts of a wave
Longitudinal and transverse waves
Highs and lows
Fast and slow
Fast and slow
Sea Sick!
100
A repeating disturbance that transfers energy through matter or space is called an...
What is a Wave?
100
The high point of a transverse wave (#2 below)
What is the crest?
100
The less dense region of a longitudinal wave, where the medium is spread out is called...
What is rarefaction?
100
What is the amplitude of the wave?
Amplitude = 9
100
Rewrite the wave speed equation to solve for frequency
frequency = velocity/wavelength
200
The medium of this wave moves up and down, perpendicular to the direction of the wave.
What is a transverse Wave?
200
The low point of a transverse wave (#3 below)
What is the Trough?
200
The more dense region of a longitudinal wave, where the medium is crowded together is called...
What is Compression?
200
Double Jeopardy: What is the wavelength?
WL = 3
200
Rewrite the wave speed equation for wavelength
Wavelength = Velocity/frequency
300
In this wave, the particles of a medium move side to side in the same direction as the wave.
What is a longitudinal wave?
300
The distance between two identical points on two waves (#1 below) is called...
Wavelength
300
Double Jeopardy!
____________is described as how closely the medium is pushed together at the compression of a longitudinal wave.
What is the Amplitude?
300
Double Jeopardy: What is the wavelength of the wave?
Wavelength = 12
300
Double Jeopardy
Which of the following are not mechanical waves:
A) Sound
B) Light
C) Ocean
D) Radio waves
E) Seismic
Mechanical Waves are waves that can only travel through matter.
B) Light
D) Radio waves
400
These waves occur during an earth quake and have elements of both a longitudinal and transversal wave.
What are seismic waves?
400
The measure of how high or low a wave is (#3 below)
Amplitude
400
The number of wavelengths that pass a given point per second
What is Frequency measured in Hertz (Hz)
400
Double Jeopardy!
What is the frequency in the graph below:
Frequency equals complete waves per second = .25 Hz
400
Double Jeopardy!
What is the wavelength of a sound wave with a frequency of 220 Hz if its speed is 340 m/s? (round to the nearest hundredth)
What is 1.55 m
500
Double Jeopardy!
A wave along a guitar string has a frequency of 540 Hz and a wavelength of 2.5 meters. Calculate the speed of the wave.
What is 1350 m/s
500
Double Jeopardy!
The average wavelength in a series of ocean waves is 15.0 meters. A wave crest arrives at the shore on an average of every 10.0 seconds, so the frequency is 0.100 Hz. What is the average speed of the waves?
What is 1.5 m/s
500
Double Jeopardy!
The speed of sound in air is about 340 m/s. What is the wavelength of sound waves produced by a guitar string vibrating at 490 Hz? (to the nearest thousandth)
what is 0.694 m
500
Double Jeopardy!
The note A above middle C on a piano emits a sound wave with a wavelength of 0.77 meters.
What is the frequency of the wave? Use 340 m/s as the speed of the sound wave. (round to the nearest hundredth)
What is 441.56 Hz
500
Double Jeopardy!
An FM radio station broadcasts electromagnetic waves at a frequency of 94.5 MHz (equal to 94,500,000 Hz). These radio waves have a wavelength of 3.17 meters. What is the speed of the waves?
What is 299,565,000 m/s