ICSE Class 10 Sound — Mock Test (2027)

Free online mock test for Sound (ICSE Class 10 Physics) — 20 competency-based questions based on the latest CISCE 2027 syllabus, with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.A boy standing in front of a wall produces two whistles per second. He notices that the sound of his whistling coincides with the echo. The echo is heard only once when whistling is stopped. Calculate the distance between the boy and the wall. (The speed of sound in air $= 320\mathrm{m / s}$)
2. 2.A pendulum has a frequency of 5 vibrations per second. An observer starts the pendulum and fires a gun simultaneously. He hears the echo from the cliff after 8 vibrations of the pendulum. If the velocity of sound in air is 340 m s⁻¹, what is the distance between the cliff and the observer?
   • A.136 m
   • B.272 m
   • C.544 m
   • D.680 m
3. 3.Which statement correctly describes the relationship between loudness and intensity of a sound?
   • A.Loudness is directly proportional to intensity
   • B.Loudness is inversely proportional to intensity
   • C.Loudness follows a logarithmic relationship with intensity
   • D.Loudness is independent of intensity
4. 4.What term describes the characteristic that enables us to distinguish between sounds of the same loudness and pitch but emitted by different sources?
   • A.Pitch
   • B.Loudness
   • C.Quality or timbre
   • D.Intensity
5. 5.The human ear can detect continuous sounds in the frequency range from $20\,\mathrm{Hz}$ to $20000\,\mathrm{Hz}$. Assuming that the speed of sound in air is $330\,\mathrm{ms}^{-1}$ for all frequencies, calculate the wavelengths corresponding to the given extreme frequencies of the audible range.