Tag: world of sounds

Quizzes (14) Questions (102)

Questions Related to world of sounds

Multiple choice physics world of sounds sound is produced by a vibrating body propagation of sound production and propagation of sound

If we strike a water-filled bowl with spoon, then why there is variation in the sound produced due to change in water level of the bowl?

  1. due to change in pitch

  2. due to change in amplitude

  3. both A and B

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Due to change in air column the wavelength and fundamental frequency changes. So the pitch of the sound changes which results in difference in the produced sounds .

so the answer is A.

Multiple choice physics world of sounds time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

Which factors determine the quality of the note ?

  1. Wavelength.

  2. Frequency

  3. Time period.

  4. Wave form.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Quality is used to describe the quality of the waveform as it appears to the listener. Therefore,  the quality of a note depends upon the waveform. 
Two notes of the same pitch and loudness, played from different instruments do not sound the same because the waveforms are different and therefore differ in quality or tone.

Multiple choice physics world of sounds time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

State whether given statement is True or False
Wave form is equivalent to quality 

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Quality is used to describe the quality of the waveform as it appears to the listener. Therefore,  the quality of a note depends upon the waveform. 
Two notes of the same pitch and loudness, played from different instruments do not sound the same because the waveforms are different and therefore differ in quality or tone.
Hence, quality of the sound is affected due to the change in its waveform.

Multiple choice physics world of sounds time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

Shock waves are produced by objects

  1. carrying electric charges and vibrating

  2. vibrating with frequency greater than 20000Hz

  3. vibrating with very large amplitude

  4. moving with a speed greater than that of sound in the medium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Shocks are caused by objects moving faster than the speed of sound in the medium.
(The shock tries to bring the velocity of the fluid in the medium to subsonic).

Multiple choice physics world of sounds time period, frequency and amplitude of sound amplitude, time period and frequency of a vibration nature and characteristics of sound waves

Sound waves are not transmitted to long distance because,

  1. they are absorbed by the atmosphere

  2. they have constant frequency

  3. the height of antenna required, should be very high

  4. velocity of sound waves is very less
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sound waves are not transmitted to long distance because they are absorbed by the atmosphere. 

Multiple choice physics world of sounds characteristics of sound wave time period, frequency and amplitude of sound sound waves are longitudinal waves

Fill in the blank.

When sound travels in a medium _______ travels in form of a wave.

  1. the source

  2. the particles of the medium

  3. the disturbance

  4. the medium
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

When sound travels in a medium the disturbance travels in form of a wave.
Sound is produced when something vibrates. That is, a disturbance is produced. The vibrating body or disturbance causes the medium (water, air, etc.) around it to vibrate. Vibrations in air are called traveling longitudinal waves, which we can hear. Sound waves consist of areas of high and low pressure called compressions and rarefactions, respectively.