Updated on June 12, 2023
by Tiwari Academy
by Tiwari Academy
Class 8 Science Chapter 10 MCQ (Multiple Choice Questions) of Sound for CBSE and State board students prepared for new academic session 2025-26 free to use. All the contents are prepared from latest NCERT Books issued for new academic session 2025-26. Now a days MCQs are important part of question papers in exams. These MCQ contains all the important extra questions covering the complete chapter of NCERT Book class 8 Science chapter 10.
Class 8 Science Chapter 10 MCQ
| Class: 8 | Science |
| Chapter: 10 | Sound |
| Contents: | MCQ Online Tests |
| Academic Session: | 2025-26 |
MCQ Tests with Answers for Class 8 Science Chapter 10
Q1
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. Sound is a form of energy which makes us hear.
[B]. Sound is produced by vibrating objects.
[C]. Sound is produced by different objects but human cannot produce sound.
[D]. The vibration of the sound producing object are so small that we cannot see them easily.
Q2
Loudness of sound is measured in units of
[A]. Decibel (dB)
[B]. Hertz (Hz)
[C]. Metre (m)
[D]. Metre/second (m/s)
Q3
Consider the following statements and choose the correct one:
[A]. Sound is produced by the vibration of vocal cords.
[B]. The human voice box or larynx contain two ligaments known as “vocal cords”.
[C]. The human beings produce sound by using the voice box which is called larynx.
[D]. All the above.
Q4
1 hertz is equal to:
[A]. 1 vibration per minute
[B]. 10 vibrations per minute
[C]. 60 vibrationsper minute
[D]. 600 vibrations per minute
Q5
Pitch of sound is determined by its
[A]. Frequency
[B]. Amplitude
[C]. Speed
[D]. Loudness
Q6
Which of the following statement is or are incorrect?
[A]. Sound can travel through solids, liquids and gases.
[B]. The sound of ringing telephone bell travels to us through the air in the room.
[C]. Sound cannot travel through vacuum because vacuum has no molecules which can vibrate and carry sound waves.
[D]. None of the above.
Q7
Ultrasound has frequency of vibration:
[A]. Between 20 and 20,000 Hz
[B]. Below 20 Hz
[C]. Above 20,000 Hz
[D]. Between 500 and 10,000 Hz
Q8
Which of the following statements are correct?
[A]. Sound is produced by vibration and sound requires a medium for propagation.
[B]. Sound is produced by vibration and sound requires a medium for propagation and light and sound both requires a medium for propagation.
[C]. Sound requires a medium for propagation and light and sound both requires a medium for propagation and sound travel slower than light.
[D]. Sound is produced by vibration and sound requires a medium for propagation and sound travel slower than light.
Q9
The loudness of sound depends on:
[A]. Its amplitude
[B]. Its time period
[C]. Its frequency
[D]. Its speed
Q10
In which of these medium can sound travel?
[A]. Wood and Water
[B]. Wood and Water and Air
[C]. Air and Vacuum
[D]. Water and Air and Vacuum
Q11
Lighting can be seen at the moment when it occurs. Paheli observes lighting in her area. She hears the sound 5 seconds after she observed lighting. How far is she from the place where lightning occurs?
[A]. 1.56 km
[B]. 1.65 km
[C]. 16.5 km
[D]. 15.6 km
Q12
In a quiz competition, you are asked a question where you have to choose the statement which is/ are incorrect?
[A]. The outer part of ear is called “pinna”.
[B]. The inner part of ear has a coiled tube called “cochlea”.
[C]. The three tiny bones in the ear act as a system of levers and sound vibration passing them on the brain.
[D]. None of the above.
Q13
Read the following sentences carefully, and choose the incorrect one:
[A]. [A] Sound travels about 15 times faster in steel than in air.
[B]. Sound travels faster in wood than in air.
[C]. Sound travels faster in wood than in water.
[D]. None of the above.
Q14
Consider the following statements and choose the incorrect one:
[A]. Partial hearing loss can also be caused by noise pollution.
[B]. Partial hearing loss is generally due to an illness, infection, injury or old age.
[C]. Hearing Aid is a small sound amplifying device worn on the ear by any deaf person.
[D]. None of the above
Q15
Choose the statements which are correct to measure to control noise pollution:
[A]. The bursting of crackers should be avoided
[B]. We should not play a television, radio, stereo-system too loudly.
[C]. The too loud horns of motor vehicles should not be blown unnecessarily.
[D]. All the above.
Q16
Before playing the orchestra is in a musical concert a sitarist tries to adjust the tension and pluck the string suitably. By doing so he is adjusting:
[A]. Intensity of the sound only
[B]. Amplitude of the sound only
[C]. Frequency of the sitar string with the frequency of other musical instruments
[D]. Loudness of the sound
Q17
Choose the statements which are incorrect about noise pollution:
[A]. Loud noise can cause irritation and headache.
[B]. Loud noise can even damage the ears permanently and cause deafness.
[C]. Loud noise can cause an ailment called hypertension or high blood pressure.
[D]. Loud noise gives energy to all young persons including teenag
Q18
Badal appeared in class test but he confused to know the correct statement. Would you help him to know that?
[A]. Stringed musical instruments produce musical sounds by the vibration of a stretched string.
[B]. Wind musical instruments produce musical sound by the vibration of air columns inside them.
[C]. Membrane type musical instruments produce sound by the vibration of thin stretched membranes.
[D]. All the above.
Q19
The speed of highly penetrating “ultrasonic waves” is:
[A]. Lower than those of audible sound waves
[B]. Higher than those of audible sound waves
[C]. Much higher than those of audible sound waves
[D]. Same as those of audible sound waves
Q20
The ultrasound waves can penetrate into matter to a large extent because they have:
[A]. Very high speed
[B]. Very high frequency
[C]. Very high quality
[D]. Very high amplitude
Q21
Recently, in a science class test, you are asked a question where you have to say whether the statements are correct or not?
[A]. The sounds of frequencies less than 20 hertz are called infrasonic.
[B]. The range of audible frequency of sound for human hearing is from 20 hertz to 20000 Hertz.
[C]. The sound of frequencies greater than 20,000 hertz are called ultrasonics.
[D]. All the above.
Q22
The velocities of sound waves in four media M, N, O and P are 18, 000 km/h, 900 km/h, 0 km/h, and 1200 km/h respectively. Which medium could be a liquid substance?
[A]. M
[B]. N
[C]. O
[D]. P
Q23
Which of the following modes is utilized in the production of sound by humans?
[A]. Vibrating membranes.
[B]. Vibrating plates.
[C]. Vibrating strings.
[D]. Vibrating air columns.
Q24
In a science quiz competition, Payel is asked a question where she had to choose the statement which was/were incorrect?
[A]. The voice of a woman is shriller than that of a man.
[B]. The voice of a small baby is even more shrill than that of a woman.
[C]. As the frequency of vibration of an object increases, the pitch or shrillness of sound produced by it also increases.
[D]. None of the above.
Q25
Which of the following statement is or are incorrect?
[A]. The number of vibrations made in one second is called the frequency of vibration.
[B]. When an object makes one vibration per second, its frequency is said to be 1 hertz.
[C]. The loudness of sound depends on the amplitude of vibrations of the vibrating object.
[D]. All the above.
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Last Edited: June 12, 2023
