Sound Waves - SS3 Physics Past Questions and Answers - page 2
Quality can be described as ___
a measure of the complex nature of a sound wave
a measure of the amplitude of a sound wave
a measure of the frequency of a sound wave
a measure of the ratio of sound to the medium it travels through
Where can the knowledge of the characteristics of sound be applied?
Understanding the characteristics of sound waves is therefore essential to the study of acoustics and the design of audio systems, as well as in fields such as music, speech communication, and hearing research.
Users' Answers & CommentsExplain what is meant by the pitch of a sound wave.
Pitch is a measure of the frequency of a sound wave. Sounds with higher frequencies are perceived as having a higher pitch, while sounds with lower frequencies are perceived as having a lower pitch.
Users' Answers & CommentsThe factors affecting the speed of sound waves in dry air are all except ___
Temperature
Volume
Humidity
Atmospheric Pressure
Sound waves travel through which of these materials the fastest?
Rope
Water
Steel
Air
Which of these is the key factor that affects the speed of sound waves travelling via a medium?
Density
Pressure
Humidity
Temperature
Understanding of the speed of sound is fundamental in the following fields except in ___
Aerospace engineering
Acoustics
Seismology
Marine biology
The denser the medium, the ___ sound waves travel through it
Slower
Proportionally
Faster
Equally
Explain why the speed of sound varies.
Sound waves travel faster through denser mediums, such as solids than through less dense mediums, such as gases.
Users' Answers & CommentsA sound wave is observed to travel through an unconventional medium with a frequency of 89Hz and a wavelength of 6 meters, what is the velocity of the sound wave travelling through this medium?
F = 89Hz, λ = 6 meters
Recall, v = f x λ, subsisting,
V = 89 x 6 = 534 meters per second
Users' Answers & Comments