5.4 Sound

Multiple Choice

______ is how high or low a sound is; depends on the frequency.

• pitch
• frequency
• sound
• medium

Multiple Choice

A soft, low pitch sound would have which of the following....

• low frequency 
  high amplitude 
• high frequency 
  high amplitude 
• low frequency 
  low wavelength  
• low frequency
  low amplitude 

Multiple Choice

A reflected sound wave is know as a/an ___________.

• frequency
• pitch
• echo
• rarefaction

Multiple Choice

If I increase the energy of a wave, what will happen to the pitch? 

• stays the same
• increases
  (higher pitch)
• decreases
  (lower pitch)
• goes up but levels off

Multiple Choice

A soft, high pitch sound would have which of the following....

• low frequency 
  high amplitude
• low frequency 
  low wavelength 
• high frequency 
  low amplitude
• high frequency 
  high amplitude 

Multiple Choice

______ is how loud or soft a sound is; depends on the amplitude.

• pitch
• frequency
• loudness
• medium

Multiple Choice

What best describes the doppler effect?

• An apparent change in frequency of a wave due to the relative motion between a wave source and an observer
• When sound changes pitch
• When light changes color
• An apparent change in the amplitude of a wave due to the relative motion between a wave source and an observer.

Multiple Choice

When the car moves AWAY from you, its horn seems...

• Low pitched
• High pitched
• Normal

Multiple Choice

When an ambulance move TOWARD you it sounds ________ pitched. 

• high
• low
• medium

Multiple Choice

What can you tell about this object's motion?

• Moving to the North (up).
• Moving to the South (down). 
• Moving to the West (left). 
• Moving to the East (right).