A disturbance that transfers energy from one place to another without transferring energy
  • wave
  • trough
  • pitch
  • sound
A reflected sound wave
  • frequency
  • pitch
  • echo
  • rarefaction
A wave that requires a medium through which to travel
  • mechanical wave
  • chemical wave
  • electromagnetic wave
  • pitch
A disturbance that travels through a medium as a longitudinal wave
  • sound
  • wavelength
  • pitch
  • frequency
Bending of waves around an object (such as through a doorway)
  • sound
  • diffract
  • pitch
  • volume
travels through solids fastest because the molecules are closer together
  • speed of sound
  • wavelength
  • frequency
  • amplitude
The number of wavelengths that pass a point each second
  • frequency
  • wavelength
  • pitch
  • amplitude
Material (matter) through which a wave travels
  • medium
  • Doppler Effect
  • sound
  • pitch
How high or low a sound is; depends on the frequency (greater frequency= higher pitch)
  • pitch
  • frequency
  • sound
  • medium
A wave in which the vibration is in the same direction as that in which the wave is traveling; sound waves
  • longitudinal wave
  • ocean wave
  • transverse wave
  • mechanical wave
The part of a longitudinal wave where the particles of the medium are close together.
  • rarefaction
  • compression
  • crest
  • trough
A part in a longitudinal wave where the particles are spread apart
  • compression
  • rarefaction
  • crest
  • trough
You and your father inspect an empty house with the hopes of buying it. You walk through the rooms talking to one another, and you notice that your voices and footsteps are echoing in the big, empty house. What causes the echo?
  • sound waves reflecting off smooth, flat surfaces throughout the house
  • sound waves moving around the large rooms
  • sound waves moving slowly through air
  • sound waves refracting around corners in the empty rooms
Cletus wants to make ear protectors for people who work around loud jet engines at Hartsfield Airport in Atlanta. Which of the following materials should he experiment with for the best results?
  • a material that produces sound
  • a material that absorbs sound
  • a material that transmits sound
  • a material that amplifies sound
As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's
  • concussion. 
  • amplitude. 
  • reflection.
  • frequency. 
After the train passed, the pitch of the train whistle became lower. This change in sound would be represented by what change in the diagram above? 
sc-5 sb-2-Sound Wavesimg_no 566.jpg
  • The distance represented by C would increase. 
  • The distance represented by C would decrease. 
  • The distance represented by D would increase. 
  • The distance represented by D would decrease. 
Which of the following would you hear as a low pitched sound? 
  • sound wave with a frequency of 50 Hz
  • sound wave with frequency of 10,000 Hz
  • sound wave with an intensity of 10 dB
  • sound wave with an intensity of 100 dB
What is the Doppler Effect
  • Where the wavelength of a wave is shifted due to the source moving
  • When a wave is shifted when a body pushes the wave
  • Where the apparent wavelength of a wave is shifted due to the source moving
An observer moves towards a source of sound at a speed of 30 ms-1If the frequency of the sound to a stationary observer is 500 Hz the frequency to the moving observer is
sc-5 sb-2-Sound Wavesimg_no 567.jpg
  • 456 Hz
  • 544 Hz
  • 460 Hz
  • 548 Hz
If a wave is traveling at 260 m/s and has a wavelength of 0.8 m/s, what is its frequency?
  • 208 Hz
  • 325 Hz
  • 430 Hz
  • 160 Hz
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