subject

Sound Production

Physics ⇒ Waves and Sound

Sound Production 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 Sound Production. 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 11
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 period of 0.002 seconds. What is its frequency?
A tuning fork vibrates at 512 Hz. What is the frequency of the sound produced?
Describe how sound is produced in a guitar string.
Explain why sound is not heard on the Moon.
Explain why sound travels faster in solids than in gases.
Explain why the sound of thunder is heard after the flash of lightning is seen.
If a sound wave has a frequency of 440 Hz and a wavelength of 0.78 m, calculate the speed of sound.
If the frequency of a sound wave is doubled, what happens to its wavelength (assuming speed of sound is constant)?
If the speed of sound in water is 1500 m/s and the frequency of a sound wave is 300 Hz, what is its wavelength?
State one difference between noise and musical sound.
State the law of reflection of sound.
A flute and a clarinet are both playing the same note at the same loudness. However, they sound different. What property of sound is responsible for this difference?
A metal rod is struck at one end while the other end is held firmly. Explain why the sound produced is different from that produced when the rod is struck at the center and both ends are free.
A pipe open at both ends produces a fundamental frequency of 300 Hz. If the speed of sound in air is 330 m/s, what is the length of the pipe?
A string fixed at both ends is vibrating in its third harmonic. If the length of the string is 1.2 m and the speed of sound in the string is 360 m/s, calculate the frequency of the sound produced.
Describe the process by which the human vocal cords produce different pitches of sound. Include the role of tension and length of the vocal cords in your answer.
Explain how resonance can amplify the sound produced by a tuning fork when it is placed near a hollow box. Include the physical principles involved.