Characteristics of Sound
Physics ⇒ Waves and Sound
Characteristics of Sound starts at 7 and continues till grade 12.
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See sample questions for grade 10
A person hears a thunder 3 seconds after seeing the lightning. If the speed of sound in air is 340 m/s, how far away is the thunderstorm?
A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. Calculate the speed of sound in the medium.
A sound wave has a time period of 0.005 seconds. What is its frequency?
A sound wave has a wavelength of 1.5 m and travels at 330 m/s. What is its frequency?
A sound wave travels 1500 m in 5 seconds. What is the speed of sound in the medium?
Define 'ultrasound'.
Describe how the human ear distinguishes between a loud and a soft sound.
Describe what happens to the speed of sound as it moves from air into water.
Explain the difference between noise and musical sound.
Explain the term 'timbre' or 'quality' of sound.
Explain why sound cannot travel through outer space.
Explain why two sounds with the same frequency and amplitude can still be distinguished by the human ear.
What happens to the pitch of a sound if its frequency increases?
What is the SI unit of frequency?
What is the term for sound waves with frequencies below 20 Hz?
Which characteristic of sound allows us to distinguish between a piano and a violin playing the same note at the same loudness?
Which property of sound is related to the energy carried by the wave?
