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 12

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

A sound wave travels 1700 m in 5 seconds. What is its speed?

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

A string has a mass per unit length of 0.02 kg/m and is under a tension of 80 N. What is the speed of a wave on this string?

A water wave has a wavelength of 2 m and a frequency of 0.5 Hz. What is its speed?

A wave has a speed of 250 m/s and a wavelength of 5 m. What is its frequency?

A wave on a string has a speed of 10 m/s. If the tension is quadrupled, what will be the new speed of the wave?

A wave travels 600 meters in 3 seconds. What is its speed?

Which of the following best describes the relationship between wave speed, frequency, and wavelength? (1) Wave speed increases as frequency increases, if wavelength is constant. (2) Wave speed decreases as frequency increases, if wavelength is constant. (3) Wave speed is independent of frequency and wavelength. (4) Wave speed is the sum of frequency and wavelength.

Which of the following factors does NOT affect the speed of a wave on a string? (1) Tension in the string (2) Mass per unit length of the string (3) Amplitude of the wave (4) Length of the string

Which of the following is true about the speed of sound? (1) It is faster in water than in air. (2) It is slower in solids than in gases. (3) It is the same in all media. (4) It does not depend on temperature.

Which of the following statements is correct? (1) All waves travel at the same speed in a given medium. (2) The speed of a wave depends only on its frequency. (3) The speed of a wave depends on the properties of the medium. (4) The speed of a wave is always equal to the speed of light.

Fill in the blank: The speed of a wave depends on the _______ of the medium.

Fill in the blank: The speed of a wave on a stretched string is given by v = _______.

Fill in the blank: The speed of sound in air increases as the _______ increases.

The speed of sound in air at 20°C is approximately _______ m/s.

True or False: Increasing the amplitude of a wave increases its speed.

True or False: The speed of a wave is always equal to the product of its frequency and wavelength.

True or False: The speed of a wave is determined by its source.

True or False: The speed of electromagnetic waves in a vacuum is approximately 3.00 × 10⁸ m/s.