NCERT MCQ Solutions for Class 8 Science Chapter 10 Sound for Session 2025-26 help students understand key concepts. Grade 8th Science Chapter 10 describes the topics like vibration, pitch, frequency, amplitude and noise pollution. These well-structured multiple-choice questions cover important definitions, practical applications and logical reasoning based on the NCERT textbook. Designed as per the latest syllabus, these MCQs sharpen problem-solving skills and boost exam preparation. Perfect for quick revision and self-assessment, they ensure better understanding and confidence in tackling science questions effectively.


Class 8 Science Chapter 10 Solution
Class 8 Science MCQ
Class 8 All Subjects MCQ

Class 8 Science Chapter 10 MCQ Test

Q1. How is sound produced?

[A]. By vibrating objects
[B]. By magnetic fields
[C]. By electric currents
[D]. By stationary objects

Q2. What is the role of the vocal cords in humans?

[A]. To produce sound
[B]. To digest food
[C]. To filter air
[D]. To pump blood

Q3. Which of the following is NOT a medium through which sound can travel?

[A]. Gas
[B]. Liquid
[C]. Vacuum
[D]. Solid

Q4. What is the function of the eardrum?

[A]. To vibrate in response to sound waves
[B]. To filter air
[C]. To regulate body temperature
[D]. To produce sound

Quiz on Class 8 Science Chapter 10

Q5. What is the unit of frequency?

[A]. Decibel (dB)
[B]. Hertz (Hz)
[C]. Meter (m)
[D]. Second (s)

Q6. What determines the loudness of a sound?

[A]. Amplitude
[B]. Wavelength
[C]. Medium
[D]. Frequency

Q7. Which of the following sounds has the highest pitch?

[A]. Whistle
[B]. Lion’s roar
[C]. Thunder
[D]. Drum

Q8. What is the audible frequency range for humans?

[A]. 20 Hz to 20,000 Hz
[B]. 20,000 Hz to 50,000 Hz
[C]. 50,000 Hz to 100,000 Hz
[D]. 2 Hz to 20 Hz

Class 8 Science Chapter 10 MCQs for Exam

Q9. What is noise pollution?

[A]. Unwanted or excessive sounds
[B]. Sounds from musical instruments
[C]. Sounds produced by animals
[D]. Pleasant sounds

Q10. Which of the following can hear sounds with frequencies higher than 20,000 Hz?

[A]. Birds
[B]. Dogs
[C]. Fish
[D]. Humans

Q11. What happens when the amplitude of vibration increases?

[A]. Sound becomes softer
[B]. Pitch increases
[C]. Frequency decreases
[D]. Sound becomes louder

Q12. Which part of the human body vibrates to produce sound?

[A]. Vocal cords
[B]. Heart
[C]. Stomach
[D]. Lungs
Class 8 Science Chapter 10 Quiz Practice

Q13. What is the time period of a vibration?

[A]. The time taken to complete one vibration
[B]. The loudness of the sound
[C]. The distance traveled by the sound
[D]. The number of vibrations per second

Q14. Which of the following is a source of noise pollution?

[A]. Birds chirping
[B]. Loudspeakers
[C]. Whispering
[D]. Flute

Q15. Why do women generally have higher-pitched voices than men?

[A]. Their vocal cords are shorter
[B]. They speak louder
[C]. They have larger lungs
[D]. Their vocal cords are longer

Q16. What is the purpose of planting trees along roadsides?

[A]. To reduce noise pollution
[B]. To block sunlight
[C]. To attract birds
[D]. To increase noise pollution
Class 8 Science Chapter 10 MCQ Explanation

Q17. What is the frequency of a sound if it completes 50 oscillations in 5 seconds?

[A]. 50 Hz
[B]. 250 Hz
[C]. 10 Hz
[D]. 5 Hz

Q18. Which of the following is an example of a musical sound?

[A]. Construction noise
[B]. Sound from a harmonium
[C]. Thunder
[D]. Traffic noise

Q19. What is the effect of noise pollution on health?

[A]. Better digestion
[B]. Hypertension and sleep disturbances
[C]. Increased lung capacity
[D]. Improved hearing

Q20. Why is lightning seen before thunder is heard?

[A]. Sound travels faster than light
[B]. Lightning is brighter
[C]. Thunder is produced later
[D]. Light travels faster than sound