9.04 Sound Waves

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Test Your Knowledge

1. In which medium do sound waves travel faster?
   
   1. air
   2. water
   Answer: Sound travels up to four times faster in water than in air.



2. An increase in temperature will cause sound waves to travel _____.
   
   1. faster
   2. slower
   Answer: An increase in temperature will cause sound waves to travel faster.



3. Sound waves are a type of _____.
   
   1. longitudinal wave
   2. transverse wave
   Answer: Sound waves are a type of longitudinal wave.



4. _____ is the perception of sound volume.
   
   1. Loudness
   2. Intesity
   Answer: Loudness is the perception of sound volume.



5. What is the measurement of the height of a wave?
   
   1. amplitude
   2. wavelength
   Answer: Amplitude is the measurement of the height of a wave.



6. The loudness of a wave is determined by its _____.
   
   1. size
   2. medium through which it passes
   Answer:The loudness of a wave is determined by its size.