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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 9
A person shouts across a canyon and hears the echo 4 seconds later. If the speed of sound 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 its speed?
A sound wave has a wavelength of 2 meters and a speed of 340 m/s. What is its frequency?
A sound wave travels 686 meters in 2 seconds. What is the speed of sound in this case?
A sound wave travels at 1500 m/s in water. If its frequency is 300 Hz, what is its wavelength?
A submarine sends a sonar signal that travels to an object and back in 4 seconds. If the speed of sound in seawater is 1500 m/s, how far away is the object?
Describe how temperature affects the speed of sound in air.
Describe how the speed of sound changes with altitude in the atmosphere.
Describe how the speed of sound is measured experimentally in air.
Describe what happens to the speed of sound if the density of the medium increases but elasticity remains the same.
Explain why sound cannot travel through outer space.
Explain why sound travels faster in solids than in gases.
Explain why sound travels faster in water than in air.
Explain why the speed of sound is different in different materials.
If the speed of sound in a material is 2000 m/s and its frequency is 250 Hz, what is the wavelength?
If the temperature of air increases, what happens to the speed of sound?
What is the speed of sound in dry air at 20°C?
A scientist measures the speed of sound in two different gases at the same temperature. Gas A has a lower molecular mass than Gas B. Which gas will have a higher speed of sound? Explain your answer.
A sound wave travels from air into water. What happens to its speed and wavelength? Explain your answer.
A sound wave travels through a metal rod and takes 0.5 seconds to cover a distance of 3000 meters. Calculate the speed of sound in the metal rod.