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 12

A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m in air. What is the speed of sound?

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 1700 m in 5 seconds. What is the speed of sound in this case?

A sound wave travels at 330 m/s in air. If the wavelength is 1.1 m, what is its frequency?

A sound wave travels through a metal rod at 5100 m/s. If the rod is 2.04 m long, how long does it take for the sound to travel from one end to the other?

A thunderstorm is observed. The time between seeing the lightning and hearing the thunder is 6 seconds. If the speed of sound in air is 340 m/s, how far away is the storm?

Calculate the speed of sound in air at 20 °C. (Use the formula v = 331 + 0.6T, where T is in °C.)

Describe how the speed of sound in air changes with altitude.

Describe the effect of humidity on the speed of sound in air.

Explain why sound cannot travel through a vacuum.

Explain why the speed of sound increases with temperature in air.

Explain why the speed of sound is different in hydrogen and oxygen at the same temperature and pressure.

If the speed of sound in air is 340 m/s, what is the wavelength of a 1700 Hz sound wave?

If the speed of sound in steel is 5000 m/s, how long does it take for sound to travel 2 km through a steel rail?

If the speed of sound in water is about 1500 m/s, how much time will it take for a sound wave to travel 3 km in water?

State the formula for the speed of sound in an ideal gas.

State two reasons why the speed of sound is greater in solids than in gases.