Class 9 Science Chapter 10 Sound Waves: Characteristics and Applications – Latest Concept Clarity MCQs with Answers | New NCERT Book 2026–27 Edition
Welcome to our Class 9 Science Chapter 10 Sound Waves: Characteristics and Applications Concept Clarity MCQs with Answers. This practice set contains latest MCQs based on the new NCERT Class 9 Science Book 2026–27 Edition and is designed to help students strengthen their understanding of important concepts related to sound waves, their characteristics, propagation, oscillations, compressions and rarefactions, and their applications.
These concept-based MCQs focus on understanding rather than memorisation, helping students test their conceptual clarity and identify areas that need improvement. The questions are ideal for Class 9 students preparing for school examinations, revision, and concept-based assessments according to the latest NCERT textbook and syllabus for the 2026–27 academic session.
Sound Waves: Characteristics and Applications Current Concept Clarity MCQs with Answers:-
Q1. Which of the following can neither be created nor destroyed?
a) Sound
b) Energy
c) Vibration
d) Amplitude
Q2. What is the property of some metals that enables them to produce sound when struck with an object?
a) Vibration
b) Malleability
c) Ductility
d) Sonority
Q3. What is the property of some metals that enables them to be hammered into sheets?
a) Vibration
b) Malleability
c) Ductility
d) Sonority
Q4. What is the property of some metals that enables them to be drawn into wires?
a) Vibration
b) Malleability
c) Ductility
d) Sonority
Q5. The material through which sound propagates is called a:
a) Air
b) Medium
c) Water
d) Solid
Q6. Sound cannot travel through:
a) Air
b) Water
c) Solids
d) Vacuum
Q7. The direction in which sound propagates may depend on the ______ of the source.
a) Loudness
b) Shape
c) Pressure
d) Energy
Q8. The region of air having higher density is called:
a) Rarefaction
b) Low sound area
c) Compression
d) Sound wave
Q9. Assertion (A): The particles of the medium do not travel with the wave.
Reason (R): They just vibrate back and forth about their mean position.
a) Both A and R are true, and R correctly explains A.
b) Both A and R are true, but R does not correctly explain A.
c) A is true, but R is false.
d) A is false, but R is true.
Q10. When an object travels faster than the speed of sound, it produces a:
a) Boom
b) Bomb
c) Explosion
d) Sonic boom
Q11. When the particles of a medium vibrate back and forth parallel to the direction of propagation of the disturbance, the wave is called a:
a) Transverse wave
b) Longitudinal wave
c) Latitudinal wave
d) Mechanical wave
Q12. Waves that require a material medium for their propagation are called:
a) Transverse waves
b) Longitudinal waves
c) Latitudinal waves
d) Mechanical waves
Q13. Assertion (A): Compression and rarefaction move through the medium.
Reason (R): Individual particles of the medium continuously move forward with the wave.
a) Both A and R are true, and R correctly explains A.
b) Both A and R are true, but R does not correctly explain A.
c) A is true, but R is false.
d) A is false, but R is true.
Q14. In the propagation of a sound wave, it is the ______ that is transferred from one place to another.
a) Particles of the medium
b) Sound wave
c) Energy
d) Sound
Q15. Sound is a form of:
a) Music
b) Energy
c) Matter
d) Force
Q16. When sound travels from a tuning fork to the ear, which of the following actually reaches the ear?
a) Air particles near the tuning fork
b) Energy carried by the sound wave
c) The tuning fork material
d) A stream of compressed air
Q17. In a graphical representation of a sound wave, the highest point is called:
a) Crest
b) Rarefaction
c) Trough
d) Compression
Q18. In a graphical representation of a sound wave, the lowest point is called:
a) Crest
b) Rarefaction
c) Trough
d) Compression
Q19. The distance between two consecutive crests or two consecutive troughs is called:
a) Sound wave
b) Wave size
c) Wavelength
d) Frequency
Q20. The symbol λ represents:
a) Frequency
b) Wavelength
c) Speed
d) Amplitude
Q21. The number of density oscillations at a fixed point per unit time is called:
a) Sound wave
b) Frequency
c) Oscillation
d) Time period
Q22. The time taken for one complete density oscillation is called:
a) Amplitude
b) Time
c) Time period
d) Frequency
Q23. The maximum change in density during a compression from the average density is called:
a) Amplitude
b) Time
c) Time period
d) Frequency
Q24. The distance travelled by a point on a wave, such as a crest, per unit time is called:
a) Oscillation
b) Speed of sound
c) Wavelength
d) Crest
Q25. The speed of sound depends on the:
a) Particles
b) Compression
c) Medium
d) Frequency
Class 9 Science Chapter 5 Exploring Mixtures and their Separation MCQs – Keep Practising!
We hope these Class 9 Science Chapter 5 Sound Waves: Characteristics and Applications MCQs with Answers helped you test your conceptual understanding of the chapter. These latest concept clarity MCQs are based on the new NCERT Class 9 Science Book 2026–27 Edition and are designed to strengthen your concepts and prepare you for exams.
How many questions did you answer correctly? Check your answers using the answer key above and revise the concepts where you made mistakes.
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