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

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.

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 1700 meters in 1 second in a certain medium. What is the medium likely to be? (1) Air (2) Water (3) Steel (4) Glass

The speed of sound is fastest in which of the following? (1) Solids (2) Liquids (3) Gases (4) Vacuum

Which of the following best explains why you see lightning before you hear thunder? (1) Light travels faster than sound (2) Sound travels faster than light (3) Both travel at the same speed (4) Thunder is produced later than lightning

Which of the following factors does NOT affect the speed of sound in air? (1) Temperature (2) Humidity (3) Air pressure (4) Frequency of sound

Fill in the blank: The formula for speed of sound is speed = _______ × wavelength.

Fill in the blank: The speed of sound in a gas is proportional to the square root of its _______.

Fill in the blank: The speed of sound in a medium depends on its _______ and _______.

Fill in the blank: The speed of sound in a medium increases as its _______ increases.

True or False: Sound can travel through a vacuum.

True or False: Sound travels at the same speed in all directions in a uniform medium.

True or False: Sound travels faster in humid air than in dry air.

True or False: The speed of sound in a medium is independent of its elasticity.