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 10
Describe how the speed of a wave changes when it moves from one medium to another.
Explain why electromagnetic waves can travel through a vacuum but sound waves cannot.
Explain why the speed of sound increases with temperature in air.
If the frequency of a wave doubles but the speed remains constant, what happens to the wavelength?
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 best explains why sound travels faster in water than in air?
(1) Water is denser than air
(2) Water molecules are closer together
(3) Sound waves are louder in water
(4) Water is colder than air
Which of the following factors affects the speed of sound in air?
(1) Temperature
(2) Frequency
(3) Amplitude
(4) Color
Which of the following is NOT a factor that affects the speed of a wave in a string?
(1) Tension in the string
(2) Mass per unit length of the string
(3) Color of the string
(4) Type of material of the string
Fill in the blank: In general, the speed of sound is fastest in ________, slower in liquids, and slowest in gases.
Fill in the blank: The SI unit of wave speed is ________.
Fill in the blank: The speed of a wave is determined by the ________ of the medium.
Fill in the blank: The speed of a wave is equal to the product of its ________ and ________.
True or False: Increasing the amplitude of a wave increases its speed.
True or False: The speed of a wave can be calculated if you know its frequency and wavelength.
True or False: The speed of a wave depends on the properties of the medium through which it travels.
True or False: The speed of a wave is always equal to the speed of the particles in the medium.
