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Characteristics of Sound

Physics ⇒ Waves and Sound

Characteristics of Sound starts at 7 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Characteristics of Sound. 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 10
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.
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?
If the amplitude of a sound wave is doubled, what happens to its loudness? (1) It becomes half (2) It becomes double (3) It becomes four times (4) It remains the same
Sound waves are classified as (1) Transverse waves (2) Longitudinal waves (3) Electromagnetic waves (4) Surface waves
What is the typical speed of sound in air at room temperature (20°C)? (1) 150 m/s (2) 330 m/s (3) 500 m/s (4) 1000 m/s
Which of the following best describes the amplitude of a sound wave? (1) The number of waves per second (2) The maximum displacement from the rest position (3) The distance between two compressions (4) The speed of the wave
Fill in the blank: The ________ of a sound wave is the distance between two consecutive compressions or rarefactions.
Fill in the blank: The ________ of a sound wave is the number of vibrations per second.
Fill in the blank: The ________ of a sound wave is the time taken for one complete vibration.
Fill in the blank: The loudness of a sound is measured in ________.
A tuning fork produces a sound of frequency 256 Hz. Is this sound audible to humans?
State True or False: The human ear is more sensitive to some frequencies than others.
State True or False: The loudness of sound is measured in decibels (dB).
State True or False: The pitch of a sound is independent of its frequency.