Sound Waves

A disturbance that travels through a medium as a longitudinal wave

• sound

• wavelength

• pitch

• frequency

travels through solids fastest because the molecules are closer together

• speed of sound

• wavelength

• frequency

• amplitude

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

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

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

The speed of sound in air is 340 m/s. The frequency of the sound waves generated by my voice is 720 Hz. Calculate the wavelength of sound of my voice.

• 380 m

• 0.472 m

• 2.11 m

• 244,800

• none of these are correct

A sound wave has a wavelength of 200 m and a frequency of 6 Hz. What is its speed?

• 1200 m/s

• 12,280 m/s

• 0.0031 m/s

• 1993.8 m/s

• none of these are correct