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 9

A bat emits a sound and hears its echo after 0.2 seconds. If the speed of sound is 340 m/s, how far is the object from the bat?

A person hears thunder 5 seconds after seeing lightning. If the speed of sound is 340 m/s, how far away is the thunderstorm?

A sound wave has a frequency of 1000 Hz and travels at 340 m/s. What is its wavelength?

A sound wave has a wavelength of 2 m and a frequency of 170 Hz. What is its speed?

Describe how sound is produced in a guitar.

Describe the difference between noise and musical sound.

Explain the term 'echo' and state the condition necessary for an echo to be heard.

Explain why sound cannot travel through a vacuum.

Explain why your voice sounds different when recorded and played back.

If the amplitude of a sound wave increases, what happens to its loudness?

If the frequency of a sound wave is 500 Hz and its wavelength is 0.66 m, what is the speed of sound?

If two sounds have the same frequency but different amplitudes, how will they differ?

State the range of audible frequencies for a normal human ear.

What happens to the speed of sound as the temperature of air increases?

What is the relationship between frequency and wavelength for a sound wave, if the speed is constant?

What is the term for sounds with frequencies below 20 Hz?

What is the unit of frequency?

Which characteristic of sound helps us to identify a person’s voice?

Which characteristic of sound is responsible for the difference between the sound of a piano and a violin playing the same note?

Which property of sound is affected when you turn the volume knob on a speaker?