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Worksheet - 2 - Sound Key

The document contains a worksheet with physics problems related to sound, specifically focusing on frequency and wavelength calculations. It includes scenarios involving an FM radio station, a moving fire engine, and a train approaching stationary sound sources. The problems require applying concepts of wave frequency and the Doppler effect.

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Ghazi Dally
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53 views2 pages

Worksheet - 2 - Sound Key

The document contains a worksheet with physics problems related to sound, specifically focusing on frequency and wavelength calculations. It includes scenarios involving an FM radio station, a moving fire engine, and a train approaching stationary sound sources. The problems require applying concepts of wave frequency and the Doppler effect.

Uploaded by

Ghazi Dally
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Worksheet 2 - Sound

1. An FM radio station’s basic frequency has a wavelength of 2.67 m. What is its frequency?

2. You are at a stop light in your car, stuck behind a red light. Just before the light is supposed to
change, a fire engine comes zooming up towards you traveling at a horrendous 85.0 km/h. If the
siren has a rated frequency 665 Hz, (a) what frequency do you hear? (b) what is the wavelength of
the sound you hear?

(a)

(b)

3. You are on a train traveling at 105 km/h. You approach a stationary 455 Hz siren. What is frequency you
hear?

4. You are on a train traveling at 55.0 km/h. You approach a bell. The actual frequency of the bell is
725 Hz. What frequency do you hear?

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