SOUND WAVES

Which of the following determines the loudness of a sound?

• 
  

  Frequency

• Amplitude

• Wavelength

• Speed

What is the unit of frequency?

• Meters

• Second

• Hertz

• Decibel

Which part of a sound wave is a region of high pressure?

• Refraction

• Compression

• Amplitude

• Wavelength

Sound travels fastest through which medium?

• Air

• Water

• Vacuum

• Solid

Sound cannot travel through a vacuum.

• True

• False

The higher the frequency of a sound, the higher its pitch.

• True

• False

Sound waves are transverse waves.

• True

• False

The speed of sound in air increases with temperature.

• True

• False

A loud sound has a higher frequency than a soft sound.

• True

• False

The distance between two compressions in a sound wave is called the __________.