CBSE Class 8 Science Chapter 10 Sound MCQs

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CBSE Class 8 Science Chapter 10 Sound Multiple Choice Questions

Question 1. What is an example of an object that works on vibrations?

  1. A spinning top
  2. A coin is tossed
  3. Marble rolling on a ramp
  4. Guitar string being plucked

Answer: 4. Guitar string being plucked

Question 2. Which of the following statements is correct?

  1. Sound is produced by vibrations.
  2. Sound requires a medium for propagation.
  3. Light and sound both require a medium for propagation.
  4. Sound travels slower than light.

” Cbse Class 8 Science Chapter 10 Mcqs “

Choose the correct options 

  1. 1 and 2
  2. 1, 2, and 3
  3. 2, 3, and 4
  4. 1, 2, and 4

Answer: 4. 1, 2, and 4

Read And Learn More CBSE Class 8 Science Multiple Choice Questions

Question 3. Sound cannot travel through

  1. Solid
  2. Liquid
  3. Air
  4. Vacuum

Answer: 4. Vacuum

” Sound Mcqs For Class 8 Cbse “

CBSE Class 8 Science Chapter 10 Sound MCQs

Question 4. A list of media is given below

  1. Wood
  2. Water
  3. Air
  4. Vacuum

Answer: 2. Water

” Cbse Class 8 Science Sound Mcqs “

Question 5. In which of these media can sound travel?

  1. 1 and 2
  2. 1, 2, and 3
  3. 3 and 4
  4. 2, 3, and 4

Answer: 3. 3 and 4

Question 6. Which option explains how sound is produced by the voice box in the human throat?

  1. The voice box vibrates due to the air coming out of the lungs
  2. The vocal cords vibrate due to the air coming in through the voice box
  3. The vocal cords stretched across the voice box are vibrated by air coming from the lungs
  4. The stretched vocal cords across the voice box produce the air to vibrate the voice box

Answer: 3. The vocal cords stretched across the voice box are vibrated by air coming from the lungs

” Sound Waves And Vibrations Mcqs “

CBSE Class 8 Science Chapter 10 Sound Multiple Choice Questions

Question 7. What is the structure of the eardrum?

  1. It is the stretched cord in the ear
  2. It is the stretched membrane in the car
  3. It is the nerve that transmits a signal to the brain
  4. It is the funnel-type canal of lie ear through which sound enters

Answer: 2. It is the stretched membrane in the car

Question 8. Is equal to

  1. 1 vibration per minute
  2. It’s vibrations per minute
  3. 60 vibrations per minute
  4. 600 vibrations per minute

Answer: 3. 60 vibrations per minute

” Frequency And Amplitude Of Sound Mcqs “

Question 9. An object is vibrating at 5 Hz. What is its period?

  1. 0.02 s
  2. 0.2 s
  3. 2 s
  4. 20.0 s

Answer: 1. 0.02 s

Question 10. The loudness of sound depends on its

  1. Amplitude
  2. Period
  3. Frequency
  4. Speed

Answer: 1. Amplitude

” Sound Travels Through Medium Mcqs “

Question 11. To reduce the loudness of a sound, we have to Competency-Based

  1. Decrease Its Frequency Of Vibration Of The Sound
  2. Increase Its Frequency Of Vibration Of The Sound
  3. Decrease Its Amplitude Of Vibration Of The Sound
  4. Increase Its Amplitude Of Vibration Of The Sound

Answer: 3. Decrease Its Amplitude Of Vibration Of The Sound

” Human Larynx And Vocal Cords Mcqs “

Question 12. Sound can travel through

  1. Gases Only
  2. Solids Only
  3. Liquids Only
  4. Solids, Liquids, And Gases

Answer: 4. Sound can travel through solids, liquids, and gases, but it cannot travel in a vacuum.

Question 13. Of which of flic following is likely to have the minimum frequency?

  1. Baby girl
  2. Baby boy
  3. A man
  4. A woman

Answer: 3. The Voice of a man is likely to have a minimum frequency.

The frequency determines the pitch of a sound; like the frequency of vibration is higher, the sound is and has higher the pitch. If the frequency of vibration is lower, the sound has a lower pitch.

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