1. Doubling the frequency of a sound source doubles the speed of the sound waves

Question

1.     Doubling the frequency of a sound source doubles the speed of the sound waves which it produces.

a.     True

b.     False

2.     Which one of the following factors determines the pitch of a sound?

a.     The amplitude of the sound wave

b.     The distance of the sound wave from the source

c.     The frequency of the sound wave

d.     The phase of different parts of the sound wave

e.     The speed of the sound wave

3.     A certain note is produced when a person blows air into an organ pipe. The manner in which one blows on a organ pipe (or any pipe) will affect the characteristics of the sound which is produced. If the person blows slightly harder, the most probable change will be that the sound wave will increase in

a.     Amplitude

b.     Frequency

c.     Pitch

d.     Speed

e.     Wavelength

4.     A vibrating object with a frequency of 200 Hz produces sound which travels through air at 360 m/s. The number of meters separating the adjacent compressions in the sound wave is:

a.     0.90

b.     1.8

c.     3.6

d.     7.2

e.     200

Doubling the frequency of a sound source doubles the speed of the sound waves which it produces. True False Which one of the following factors determines the pitch of a sound? The amplitude of the sound wave The distance of the sound wave from the source The frequency of the sound wave. The phase of different parts of the sound wave The speed of the sound wave A certain note is produced when a person blows air into an organ pipe. The manner in which one blows on a organ pipe (or any pipe) will affect the characteristics of the sound which is produced. If the person blows slightly harder, the most probable change will be that the sound wave will increase in Amplitude Frequency. Pitch. Speed Wavelength A vibrating object with a frequency of 200 Hz produces sound which travels through air at 360 m/s. The number of meters separating the adjacent compressions in the sound wave is: 0.90. 1.8. 3.6 7.2 200

Explanation / Answer

1) from v=lamda*f....

A) true


2) c. The frequency of the sound wave

3) a. Amplitude


d. Speed

e. Wavelength


4)lamda=v/f=1.8m...

number of meters separating the adjacent compressions in the sound wave is:lamda/2=1.8/2=0.9



hence answer is a. 0.90

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