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Pitch and Frequency

Physics ⇒ Waves and Sound

Pitch and Frequency 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 Pitch and Frequency. 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 12
A sound wave has a frequency of 200 Hz. If the speed of sound in air is 340 m/s, what is its wavelength?
A sound wave has a frequency of 250 Hz. How many cycles does it complete in 2 seconds?
A sound wave has a frequency of 500 Hz and a wavelength of 0.68 m. What is the speed of sound in this medium?
A sound wave has a period of 0.002 seconds. What is its frequency?
A sound wave in air has a frequency of 1000 Hz and a speed of 340 m/s. What is its wavelength?
A tuning fork vibrates at 440 Hz. What is the pitch of the sound it produces compared to a tuning fork vibrating at 220 Hz?
Describe how the pitch of a sound changes if the source of the sound moves towards a stationary observer.
Describe the relationship between wavelength and frequency for a sound wave in air.
Explain why a bass drum produces a lower pitch than a snare drum.
Explain why the pitch of a siren appears to change as an ambulance passes by an observer.
Explain why two sounds with the same frequency can have different timbres but the same pitch.
If a violin string is tightened, what happens to the frequency and pitch of the sound it produces?
If the frequency of a sound wave increases, what happens to its pitch?
If the period of a sound wave is 0.01 s, what is its frequency?
The frequency of a sound wave is 440 Hz. What is its period?
The frequency of a sound wave is doubled. What happens to its period?
Which physical property of a sound wave determines its pitch?
Which property of a sound wave changes if the pitch of the sound increases?
A flute and a guitar both play the note A4 (440 Hz) in a concert hall. Despite having the same frequency, listeners can easily distinguish between the two instruments. Explain why this is possible, focusing on the concepts of pitch and frequency.
A person hears two notes played simultaneously: one at 256 Hz and another at 260 Hz. What phenomenon will the person perceive, and what will be the frequency of this phenomenon?