Chapter 16 Sound

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

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What does pitch depend on?

• amplitude 
• frequency
• intensity 
• volume of sound

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Sound Waves Move faster in what temperature 

• Heat 
• Cold
• Doesn't Matter
• Both

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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

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Sound travels FASTEST through which of these materials?

• A type of gas, like helium

• Empty space

• A metal such as iron

• Water

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A student holds two vibrating objects.  Object A is vibrating faster than object B.  Which statement is true?

• A is louder than B
• B is louder than A
• A will have a higher pitch than B
• B will have a higher pitch than A

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An instrument that looks like the picture (an open tube) produces a fundamental frequency of 440 Hz. The speed of sound in air is 340 m/s. What is the length of the instrument?

• .39 m

• .77 m

• .98 m

• 1.16 m

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Area of a longitudinal wave where particles are APART. 

• Compression
• Rarefaction

An instrument's string has a fundamental frequency of 440 Hz. What would the frequency of the 2nd harmonic be?

• 440 Hz

• 1320 Hz

• 880 Hz

• 1760 Hz

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Suppose you wish to produce a sound wave that has a wavelength of 1 meter in room temperature air. What would the frequency of this sound wave be? What would the period of the sound wave be? (Assume the velocity of sound through the air is 340 m/s)

• 340 Hz, .003 s

• .003 Hz, .003 s

• 340 Hz, 340 s

• .003 Hz, 340 s

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