Wave Speed

Physics ⇒ Waves and Sound

Wave Speed 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 Wave Speed. 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

Explain why the speed of sound is different in air, water, and solids.

If the frequency of a wave doubles and the speed remains the same, what happens to the wavelength?

What is the formula for calculating the speed of a wave?

Which travels faster: sound in air or sound in water?

A seismic wave travels through the Earth at 5000 m/s. If its frequency is 2 Hz, what is its wavelength?

The speed of sound in water is about 1500 m/s. If a sound wave in water has a frequency of 500 Hz, what is its wavelength?

A student observes that when a wave passes from a deep region to a shallow region in water, its speed decreases. Explain why this happens in terms of the properties of the medium.

A train blows its whistle as it approaches a station. The sound travels through air at 340 m/s. If the wavelength of the sound is 0.85 m, what is the frequency of the whistle?

Which of the following best describes the relationship between wave speed, frequency, and wavelength? (1) Wave speed = frequency + wavelength (2) Wave speed = frequency × wavelength (3) Wave speed = frequency / wavelength (4) Wave speed = wavelength / frequency

Which of the following factors does NOT affect the speed of a wave? (1) Medium (2) Frequency (3) Temperature (4) Wavelength

Which of the following is NOT a unit of wave speed? (1) m/s (2) km/h (3) Hz (4) cm/s

Which of the following is the correct SI unit for wave speed? (1) m/s (2) Hz (3) m (4) s

The speed of a wave can be calculated if you know its ______ and ______.

The speed of a wave depends on the ______ through which it travels.

The speed of a wave is given by the product of its ______ and ______.

The speed of light in a vacuum is approximately ______ × 10⁸ m/s.

True or False: Increasing the frequency of a wave in the same medium increases its speed.

True or False: Light waves travel faster in glass than in air.

True or False: The speed of a wave can be calculated by dividing the distance traveled by the time taken.

True or False: The speed of a wave changes when it moves from one medium to another.