PLTW Unit 1

What is sound?

• Mechanical energy that is transmitted by longitudinal pressure waves in a medium such as water or air.

• sound intensity that is least noticeable by the normal human ear

what is frequency?

• Mechanical energy that is transmitted by longitudinal pressure waves in a medium such as water or air.

• determines the pitch (how rapidly the sound waves vibrate per second) .

How is frequency measured?

• Both

• Hertz (Hz)

• Decibels (dB)

What is Amplitude?

• Mechanical energy that is transmitted by longitudinal pressure waves in a medium such as water or air.

•  determines the intensity (loudness)

How is Amplitude measured?

• None of the above

• Hertz (Hz)

• Decibels (dB)

The lower the frequency.....?

• the lower the pitch

• the higher the pitch

• higher volume

• lower volume

The higher the frequency...?

• the lower the pitch

• the higher the pitch

• higher volume

• lower volume

The lower the amplitude, then...?

• higher pitch

• low pitch

• higher the volume

• lower the volume

The higher amplitude, then...?

• Higher the pitch

• Lower the pitch

• High volume

• Low volume

What is Sensorineural Hearing Loss?

• Hearing loss or impairment resulting from problems with the auditory nerves.

• Hearing loss or impairment resulting from interference with the transmission of sound waves to the cochlea.