Sound Propagation
Physics ⇒ Waves and Sound
Sound Propagation starts at 7 and continues till grade 12.
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See sample questions for grade 9
A person shouts across a canyon and hears an echo 2 seconds later. If the speed of sound in air is 340 m/s, how wide is the canyon?
A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is the speed of sound in this medium?
A sound wave has a wavelength of 2 m and a speed of 340 m/s. What is its frequency?
A submarine uses sonar to detect an object underwater. The sound pulse returns after 4 seconds. If the speed of sound in water is 1500 m/s, how far is the object?
Describe the difference between compression and rarefaction in a sound wave.
Describe what happens to the particles of a medium as a sound wave passes through it.
Describe what happens to the sound of a siren as an ambulance moves away from you.
Explain why sound cannot travel through outer space.
Explain why sound travels faster in humid air than in dry air.
Explain why you hear thunder after you see lightning during a storm.
State the approximate speed of sound in air at room temperature.
What happens to the speed of sound as it moves from air into water?
What is the main function of the human ear in sound propagation?
What is the main reason sound travels faster in solids than in gases?
What is the relationship between frequency and wavelength for a sound wave, if the speed is constant?
What is the term for the bouncing back of sound waves from a surface?
