Problem Questions – Chapter 11- sound

Frequency Calculation:

• If a sound wave has a wavelength of 0.5 meters and a time period of 0.02 seconds, what is its frequency?

Pitch Interpretation:

• A guitar string vibrates at a frequency of 440 Hz. How would you describe the pitch of the sound produced by this string?

Amplitude Comparison:

• Compare the amplitudes of two sound waves, one with a loudness of 80 decibels and the other with a loudness of 60 decibels.

Waveform Analysis:

• Examine the waveform graphs of two sound waves. Describe the differences in their amplitudes and frequencies.

Speed of Sound Calculation:

• If the wavelength of a sound wave is 0.6 meters and its frequency is 500 Hz, calculate the speed of sound in the medium.

Quality of Sound Identification:

• Listen to two audio clips, one of a pure tone and the other of a musical note. Describe the differences in their qualities of sound.

Loudness Variation:

• Explain why a sound becomes softer as it travels away from its source, considering its amplitude and intensity.

Pitch Determination:

• A sound wave has a frequency of 1000 Hz. What would be the pitch of this sound, and how would it compare to a sound wave with a frequency of 500 Hz?

Time Period Calculation:

• If a sound wave completes one oscillation in 0.01 seconds, what is its time period?

Speed of Sound Comparison: