True or False
Sound is vibration.
What is true?
In a transverse wave, the word that is used to describe the distance between two crests or two troughs.
What is wavelength?
Soundwaves travel through a _____ like air or water.
What is a medium?
A wave on a certain bass string travels at a speed of 400 m/s. Calculate the wavelength of a "D" note sounding at 200 Hz.
Speed= (wavelength)(frequency)
What is 2 m?
Wavelength is abbreviated by the Greek letter ___.
What is lambda?
High sounds are made by something vibrating slow, and low sounds are made by something vibrating fast.
What is false?
In a transverse wave, the word that describes the distance between a crest and the midpoint or a trough and the midpoint.
What is amplitude?
The ____ of a wave is the number of crests that pass a certain point in a given amount of time.
What is frequency?
A wave has a frequency of 7 Hz and a wavelength of 5 m. Find the speed.
Speed= (wavelength)(frequency)
What is 35 m/s?
The ability to do work.
The Wave Equation is written as cycles/second.
What is false?
In a longitudinal wave, a word that describes the distance from the end of one compression to the end of the next compression.
What is a wavelength?
___ is used to measure ocean depth.
What is sonar?
A wave travels at approximately 90 m/s. Calculate the frequency of a 6m-long sound wave.
Speed= (wavelength)(frequency)
What is 15 Hz or 15 cycles/sec?
Something that has mass and takes up space.
What is matter?
Sound waves are sometimes called pressure waves.
What is true?
In a longitudinal wave, a word that describes the change in pressure between the rarefraction and the compression points.
What is amplitude?
1/10 of a Bel.
What is a Decibel?
A wave travels at 300 m/s. If a sound wave travels at a frequency of 15 Hz, what would its wavelength be?
Speed= (wavelength)(frequency)
What is 20 m?
Disturbances that transmit energy through matter.
What are mechanical waves?
Sounds that are too high in pitch are called infrasonic.
What is false?/
A snake meanders on the floor. The word that describes its movement.
What is transverse?
Seismic and ____ waves can travel through a solid like the Earth's crust.
A fisherman notices that one wave passes the bow of his anchored boat every 2 seconds. He measured the wavelength to be 4 meters. Find the speed of the wave.
Speed= (wavelength)(frequency)
What is 2 m/s?
The unit for frequency.
What is Hertz?