A wave generator that produces a wave every 0.1 seconds with a wavelength of 0.5 meters has a wave speed of
What is 5 m/s?
100
The distance from one trough to the next consecutive trough is
What is a wavelength?
100
LASER is an acronym for
What is Light Amplification by Stimulated Emission of Radiation?
200
Two octaves higher than 300 Hz
What is 1200 Hz?
200
An Octave higher than 234 Hz is...
What is 468 Hz?
200
The period of the hour hand on our classroom clock is
What is 12 hours or 720 minutes or 43,200 seconds?
200
Half the perpendicular distance from the top of a crest to the bottom of a trough
What is the amplitude of a transverse wave?
200
LASERS can be used to make 3D images called ...
What is a hologram?
300
Three of the ways of increasing the frequency of a stringed instrument
What is shorten the length of the string, increase the tension, use a shorter diameter string of the same material, or use a string of less mass density?
300
A string 24 cm long has a fundamental frequency (1st harmonic) with wavelength
What is 0.48 m (or 48 cm)?
300
If a waves speed is 10 m/s and its period is 0.1 seconds, its wavelength is ...
What is 1 meter?
300
Increase this in a sound wave for it to get louder or another way to say it is: the energy of a wave is directly related to the
What is the amplitude of a wave?
300
In the Doppler Effect, the frequency of the sound of the source is lowest when (it is not moving, it is moving toward you, it is moving away from you)...
What is when the object is moving away from you?
400
If the fundamental is 110 Hz, the first four harmonic frequencies are ...
What are 110 Hz, 220 Hz, 330 Hz, and 440 Hz?
400
If you wiggle a slinky back and forth 10 times in 2 seconds, its period is...
What is 1/5 second or 0.2 seconds?
400
Increasing the tension of a string by a factor of 9 would have this numerical effect on the velocity of the wave energy in the string
What is the speed would increase by the square root of 9 or the speed would triple?
400
Length of time in seconds for one pulse to pass by any given spot is ....
What is the period of a wave?
400
A frequency below the range of frequencies a human ear can detect?
What is infrasonic?
500
The highest frequency a human ear can perceive (above which is ultrasonic)
What is 20,000 Hz?
500
Number of beats when 260 Hz frequency is played at the same time as a 262 Hz frequency
What is 2 beats?
500
In a given medium if the frequency of the wave energy triples the wavelength will be this fraction of its original
What is the wavelength is tripled? (because the speed in any given medium is constant)
500
Another name for the 1st harmonic
What is the fundamental?
500
The way to slowly remove wave energy (dissipate energy)
What is to add a dampener? (like the piston in water for our wave machine on the teachers desk)