Wave Anatomy
Types of Waves
The Wave Equation
Standing Waves
Sound
Sound 2.0
100
The highest point of a transverse wave
What is a Crest
100
Does not need a medium to travel
What is an electromagnetic wave
100
Calculate the frequency of a wave that crashes onto the beach 20 times every minute
What is 20/60 = 1/3
100
The name for the longest standing wave generated
What is the fundamental frequency
100
A wave with a amplitude of 3 meters meets a wave with an amplitude of 5 meters. What is their new Amplitude?
What is 8 meters
100
This is the type of interference where waves cancel each other
What is destructive interference
200
The distance between successive crests or troughs
What is Wavelength
200
Sound is this type of wave
What is a longitudinal or mechanical Wave
200
Frequency does this as wavelength goes down
What is increases
200
The value of the 6th harmonic when the fundamental frequency is 110 Hz
What is 660 Hz
200
What is the medium that sound travels fastest in
What is a solid
200
This is the name for the phenomenon where a wave is at the natural frequency of an object and causes it to vibrate with increasing amplitude.
What is resonance?
300
The wavelength in this picture:
What is 2 m
300
Needed for mechanical waves to travel through
What is a Medium
300
Calculate the wavelength of an electromagnetic wave which has a frequency of 500 MHz (Remember C=300,000,000 m/s)
What is 300,000,000/500,000,000 = 0.6m
300
The part of a standing wave which doesn't move
What are nodes
300
A parakeet makes calls that are 110 dB, whereas a cow moo is around 60 dB. Find the difference in intensity and loudness
What is 100,000 times more intense and 32 times louder
300
This is the frequency of beat heard if you have a 656 Hz wave and a 649 Hz wave
What is 7 Hz
400
Maximum displacement of a particle on the medium from its rest position
What is Amplitude
400
Particle motion is perpendicular to the direction of the wave
What is a Transverse wave
400
A particular sound wave travels at 343 m/s and has a frequency of 252 Hz. Calculate the wavelength.
What is 343/252 = 1.36 m
400
The harmonic that corresponds to a wave in a closed tube with 2 full wavelengths
What is the 4th harmonic
400
According to the doppler effect, frequency does this as a loud object moves towards you
Increases
400
This is the state of matter where sound travels the fastest
What is a solid
500
Has a standard unit of cycles per second
What is Frequecy
500
________ is not transported in a wave, only ________
What is Matter and Energy
500
A mechanical wave has a period of 0.0045s and a wavelength of 0.02 meters. Calculate the waves velocity.
What is 1/0.0045 = 222.22Hz --- 222.22*0.02 = 4.44 m/s
500
The number of wavelengths for the third harmonic in a tube with one closed and one open end
What is 3/4 a wavelength
500
If a car horn is 110 dB and 1,000,000,000 times more intense than a cat meow. This is the dB for a cat's meow.
What is 20 dB
500
A car horn is 110 dB and is 8x louder than busy traffic. This is the dB value for busy traffic.
What is 80 dB