phona

Hertz measure:

• a.      Period in seconds needed to complete one cycle

• Frequency in cycles per second

• a.      Wavelength in meters to complete one cycle

• Amplitude in Watts per second

The decibel is the unit for

•   Period

• Wavelength

• a.      Period

• a.      Amplitude

1.     When the air molecules show a compression what is the expected reading on a pressure sensor?

• a.      A decrease in pressure

• a.      No effect on pressure

• a.      An increase in pressure

• A negative pressure reading

1.     Which of the following is false?

• Elasticity is a physical property affecting sound production

• a.      Mass is how many molecules of a substance are in a given space

• a.      A body in motion will not continue to move at the same velocity unless an outside force acts on it 

• a.      An object at rest will remain at rest unless a force acts upon it

   

6. Please choose the false statement

• a.      When a vibration repeats itself at a constant number of cycles/second the wave resulting is called periodic wave 

• a.      Tuning forks are pure tone producing instruments

• Complex periodic waves are made from sinusoidal component

• a.      A Fourier Analysis Spectrum shows the frequencies of a complex sound displayed by their pitches

1.     The fundamental frequency is synonymous with:

• a.      The highest frequency of the spectrum

• a.      The last harmonic

• a.      The average frequency of the spectrum

• a.      The first harmonic

1.     The spectrum waveform of a computer generated white noise sound:

• a.      Complex aperiodic wave form

• a.      Has a simple sinusoidal waveform

• a.      Simple nonsinusoidal waveform

• a.      Complex periodic waveform

1.     Sound wave A has a frequency of 250Hz; sound wave B has a frequency of 500Hz; sound wave C has a frequency of 1000 Hz, and D has a frequency of 1500Hz

Choose the wave with the shortest period

• 250hz

• 500hz

• 1000hz

• 1500hz

9. Sound wave A has a frequency of 250Hz; sound wave B has a frequency of 500Hz; sound wave C has a frequency of 1000 Hz, and D has a frequency of 1500Hz

- Choose the wave with the shortest wavelength

• 1500hz

• 250hz

• 1000hz

• 500hz

 T is the symbol for:

• b. Period

• a.      Frequency

• c. Wavelength

• Amplitude