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.
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See sample questions for grade 11
Describe how the speed of a wave is affected when it moves from a less dense to a more dense medium.
Explain why electromagnetic waves can travel through a vacuum but sound waves cannot.
Explain why sound travels faster in solids than in gases.
Explain why the speed of light is slower in glass than in air.
If the wavelength of a water wave is doubled while its frequency remains constant, what happens to its speed?
A student observes that a wave takes 4 seconds to travel 20 meters. What is the speed of the wave?
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 in a given medium?
(1) Frequency
(2) Wavelength
(3) Amplitude
(4) Properties of the medium
Which of the following is the correct SI unit for wave speed?
(1) m/s
(2) Hz
(3) m
(4) s
Which of the following statements is correct about wave speed?
(1) It is always equal to the speed of light.
(2) It depends only on the medium.
(3) It increases with amplitude.
(4) It is independent of the medium.
Fill in the blank: The speed of a wave is the distance traveled by a ______ per unit time.
Fill in the blank: The speed of electromagnetic waves in a vacuum is ______ m/s.
The speed of sound in air at 20°C is approximately ______ m/s.
Does increasing the frequency of a wave in a given medium increase its speed?
True or False: All types of waves travel at the same speed in a given medium.
True or False: The speed of a wave changes when it passes from one medium to another.
True or False: The speed of a wave is always constant for a given medium and set of conditions.
