Speed of Sound
Physics ⇒ Waves and Sound
Speed of Sound starts at 8 and continues till grade 12.
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See sample questions for grade 11
Describe how temperature affects the speed of sound in air.
Describe the effect of pressure on the speed of sound in air at constant temperature.
Does sound travel faster in humid air or dry air?
Explain why sound cannot travel through a vacuum.
A person hears thunder 5 seconds after seeing lightning. If the speed of sound is 340 m/s, how far away is the lightning?
A sound wave has a wavelength of 2 meters and a frequency of 170 Hz. What is the speed of sound?
A sound wave takes 0.2 seconds to travel between two points 68.6 meters apart. What is the speed of sound?
A sound wave travels 1500 meters in 5 seconds. What is the speed of sound in this medium?
The speed of sound in air at 25°C is closest to:
(1) 331 m/s
(2) 343 m/s
(3) 346 m/s
(4) 360 m/s
Which of the following best explains why sound travels faster in solids than in gases?
(1) Solids are denser than gases
(2) Solids have more elastic particles
(3) Particles in solids are closer together, allowing faster energy transfer
(4) Solids have higher temperatures
Which of the following correctly lists the speed of sound from slowest to fastest?
(1) Air, Water, Steel
(2) Steel, Water, Air
(3) Water, Air, Steel
(4) Air, Steel, Water
Which of the following factors does NOT affect the speed of sound in air?
(1) Temperature
(2) Pressure
(3) Humidity
(4) Frequency of sound
Fill in the blank: The speed of sound in air increases by approximately ______ m/s for each 1°C rise in temperature.
Fill in the blank: The speed of sound in steel is approximately ______ m/s.
The speed of sound in a medium depends on the medium's ______ and ______.
The speed of sound in air at 0°C is approximately ______ m/s.
True or False: Sound travels faster in solids than in gases.
True or False: The speed of sound in a vacuum is zero.
True or False: The speed of sound in air is higher at sea level than at high altitudes, assuming the same temperature.
True or False: The speed of sound increases as the density of the medium increases, regardless of other factors.
