Physics Questions
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What is the intensity level of a sound with intensity 10^-3 W/m^2?
Consider a closed pipe of length L. What are the wavelengths of the three lowest tones produced by this pipe?
The third harmonic of a complex tone has a frequency of 1200 Hz. What is the frequency of the fourth harmonic?
Which of the following increases as a sound becomes louder?
An echo is heard 2.0 s from a cliff on a day the temperature is 15 degrees Celsius. Approximately how far away is the cliff from the observer?
You drop a stone into a deep well and hear the splash 2.5 s later. How deep is the well?
As the temperature of the air increases, what happens to the velocity of sound?
If you hear thunder 5.0 s after seeing a flash of lightning, the distance to the lightning strike is about
The lowest tone to resonate in closed pipe of length L is 200 Hz. Which of the following frequencies will not resonate in that pipe?
A person stands between two speakers driven by the same source. Each speaker produces a tone with a frequency of 200 Hz on a day when the speed of sound is 330 m/s. The person is 1.65 m from one speaker and 4.95 m from the other. What type of interference does the person sense?
What determines "pitch" of a musical note?
You double your distance from a sound source that is radiating equally in all directions. What happens to the intensity of the sound? It drops by
Compared to the velocity of a 400 Hz sound, the velocity of a 200 Hz sound through air is
Sound vibrations with frequency less than 20 Hz are called
What is the speed of sound in a steel rod?
Suppose that a sound source is emitting waves uniformly in all directions. If you move to a point twice as far away from the source, the frequency of the sound will be
For spherically diverging waves, intensity is proportional to
Compared to the wavelength of a 400 Hz sound, the wavelength of a 200 Hz sound in air is
The intensity of a point source at a distance d from the source is I. What is the intensity at a distance 2d from the source?
In general, sound is conducted fastest through