Sound Production
Physics ⇒ Waves and Sound
Sound Production starts at 7 and continues till grade 12.
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See sample questions for grade 12
A bell is rung inside a jar from which air has been removed. The sound is not heard outside the jar. Explain why.
Describe how sound is produced in a wind instrument such as a saxophone.
Describe how the human vocal cords produce sound.
Describe the process by which a drum produces sound.
Explain the difference between noise and musical sound in terms of wave characteristics.
A bell is rung inside a jar from which air has been removed. The sound is not heard outside the jar. Explain why.
A sound wave has a frequency of 440 Hz and a wavelength of 0.78 m. Calculate the speed of sound in the medium.
A sound wave travels 1500 m in 3 seconds. What is the speed of sound in the medium?
A string vibrates at a frequency of 256 Hz. If the speed of sound in air is 340 m/s, what is the wavelength of the sound produced?
The amplitude of a sound wave affects its:
(1) Pitch
(2) Loudness
(3) Speed
(4) Wavelength
The human ear can typically detect sounds in the frequency range of:
(1) 20 Hz to 20,000 Hz
(2) 2 Hz to 200 Hz
(3) 200 Hz to 2,000 Hz
(4) 2,000 Hz to 20,000 Hz
The speed of sound in air at 20°C is approximately:
(1) 150 m/s
(2) 330 m/s
(3) 343 m/s
(4) 500 m/s
Which of the following best describes the relationship between frequency and pitch?
(1) Higher frequency, lower pitch
(2) Higher frequency, higher pitch
(3) Frequency does not affect pitch
(4) Lower frequency, higher pitch
Fill in the blank: Sound is a form of ________ energy.
Fill in the blank: The ________ of a sound wave determines its pitch.
Fill in the blank: The ________ of a sound wave is related to its energy and perceived loudness.
Fill in the blank: The ________ of a sound wave is the distance between two consecutive compressions or rarefactions.
Sound can be produced in water. True or False?
Sound cannot travel through a vacuum. True or False?
Sound waves are longitudinal waves. True or False?
