Speed of Sound

Physics ⇒ Waves and Sound

Speed of Sound starts at 8 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Speed of Sound. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 10

A person shouts near a cliff and hears the echo after 2 seconds. If the speed of sound in air is 340 m/s, how far is the cliff from the person?

A sound wave has a wavelength of 2 meters and a frequency of 170 Hz. What is the speed of sound in this case?

A sound wave takes 0.5 seconds to travel from one end of a 170 m long tunnel to the other. What is the speed of sound in the tunnel?

A sound wave travels 1020 meters in 3 seconds. What is the speed of sound in this medium?

A sound wave travels 1700 meters in 5 seconds. What is the speed of sound in this case?

Describe how the speed of sound changes as it moves from air into water.

Describe the effect of pressure on the speed of sound in air at constant temperature.

Describe what happens to the speed of sound as altitude increases (assuming constant temperature).

Explain how temperature affects the speed of sound in air.

Explain why sound cannot travel through outer space.

Explain why sound travels faster in solids than in gases.

Explain why the speed of sound is higher in helium than in air.

If a sound takes 0.2 seconds to travel 68.6 meters in air, what is the speed of sound?

If the speed of sound in a liquid is 1500 m/s and a sound wave travels for 4 seconds, how far does it travel?

If the speed of sound in air is 330 m/s and a sound wave has a frequency of 440 Hz, what is its wavelength?

If the speed of sound in air is 340 m/s, how long will it take for sound to travel 850 meters?

State one reason why the speed of sound is different in different gases.

The speed of sound in a gas is given by v = √(γRT/M). What does M represent in this formula?

The speed of sound in a medium depends on which property of the medium?

What is the approximate speed of sound in dry air at 20°C?