This quiz works best with JavaScript enabled. Home > Cbse > Class 9 > Science > Sound > Class 9 Science Chapter 12 Sound – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 9 Science Chapter 12 Sound Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What letters make the long "a" sound in play? A) Ay. B) Ai. C) Eigh. D) A. Show Answer Correct Answer: A) Ay. 2. Which word has the same vowel sound has wipe? A) Fiddle. B) Did. C) Rake. D) Nice. Show Answer Correct Answer: D) Nice. 3. Find a word that follows the long /a/ sound pattern of a-consonant-e. A) Gray. B) Brave. C) Acron. D) Clay. Show Answer Correct Answer: B) Brave. 4. Find a word that follows the long /e/ sound at the end of a syllable in a two or more syllable word. A) Eleven. B) Athlete. C) Screen. D) Teen. Show Answer Correct Answer: A) Eleven. 5. I heard the dolphin ..... A) Click. B) Growl. C) Ribbit. D) None of the above. Show Answer Correct Answer: A) Click. 6. Which word has the same vowel sound as spend A) Knot. B) Weather. C) Speed. D) Finally. Show Answer Correct Answer: B) Weather. 7. Which answer is false? A) Sound is a mechanical wave. B) Sound cannot be diffracted. C) Sound can be reflected. D) Sound can travel though a gases. Show Answer Correct Answer: B) Sound cannot be diffracted. 8. Which word has the same vowel sound as chalk? A) Weather. B) Bought. C) Think. D) Change. Show Answer Correct Answer: B) Bought. 9. Speed of sound in solid is ..... than in gases A) Less. B) More. C) Both a and b. D) Equal. Show Answer Correct Answer: B) More. 10. Any sound in a film that doesn't originate from the world of the film is ..... A) Diegetic. B) Non-Diegetic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-Diegetic. 11. Which word has the same vowel sound as bought? A) Comb. B) Mall. C) Boat. D) Bite. Show Answer Correct Answer: B) Mall. 12. I heard the dog ..... A) Bark. B) Moo. C) Gobble. D) None of the above. Show Answer Correct Answer: A) Bark. 13. Which word starts with the initial sound /s/? A) Moon. B) Sun. C) Tree. D) Star. Show Answer Correct Answer: B) Sun. 14. The Sound of Music takes place before what war? A) Cold War. B) World War I. C) World War II. D) Vietnam War. Show Answer Correct Answer: C) World War II. 15. Name Captain Von Trapp's youngest daughter. A) Maria. B) Liesl. C) Gretl. D) Brigitta. Show Answer Correct Answer: C) Gretl. 16. How is amplitude measured? A) Frequency of the wave. B) Speed of the wave. C) Maximum displacement of a wave from its equilibrium position. D) Wavelength of the wave. Show Answer Correct Answer: C) Maximum displacement of a wave from its equilibrium position. 17. I heard the snake ..... A) Moo. B) Hiss. C) Click. D) None of the above. Show Answer Correct Answer: B) Hiss. 18. Speed of sound ..... with increase in temperature. A) Increases. B) Decreases. C) Remains the same. D) None of the above. Show Answer Correct Answer: A) Increases. 19. What letters make the long "a" sound in bake? A) Eigh. B) A. C) A-e. D) Ai. Show Answer Correct Answer: C) A-e. 20. Which word has the same vowel sound as gave? A) Never. B) Give. C) Take. D) Went. Show Answer Correct Answer: C) Take. 21. Maria is planning to become a ..... A) Doctor. B) Chef. C) Teacher. D) Nun. Show Answer Correct Answer: D) Nun. 22. The number of compression or rarefaction that cross per unit time ..... A) Amplitude. B) Time period. C) Frequency. D) Wavelength. Show Answer Correct Answer: C) Frequency. 23. Noise pollution has no effects on the health A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 24. The repeated reflection that results in the persistence of sound is A) Multiple reflection. B) Echo. C) Echocardiography. D) Reverberation. Show Answer Correct Answer: D) Reverberation. 25. In the following sentence what word has the long /o/ sound?-I saw a blue sparrow yesterday.- A) Blue. B) Sparrow. C) Saw. D) Yesterday. Show Answer Correct Answer: B) Sparrow. 26. Discuss the importance of sound in communication. A) Communication can be effective without sound. B) Sound can only be used for music, not communication. C) Sound is irrelevant in communication. D) The importance of sound in communication lies in its ability to convey messages effectively, express emotions, emphasize key points, and ensure clarity in verbal interactions. Show Answer Correct Answer: D) The importance of sound in communication lies in its ability to convey messages effectively, express emotions, emphasize key points, and ensure clarity in verbal interactions. 27. The speed of sound is highest in: A) Solids. B) Vacuum. C) Liquids. D) Gases. Show Answer Correct Answer: A) Solids. 28. Which word has the same vowel sound as prize? A) Win. B) Lid. C) Prince. D) Fine. Show Answer Correct Answer: D) Fine. 29. How does the speed of sound change with the change in medium? A) It increases with the change in medium. B) It remains constant in all mediums. C) It changes due to the difference in the density and elasticity of the medium. D) It decreases with the change in medium. Show Answer Correct Answer: C) It changes due to the difference in the density and elasticity of the medium. 30. Who sings the song Climb Every Mountain? A) Captain von Trapp. B) Rolf. C) Maria. D) Mother Abbess. Show Answer Correct Answer: D) Mother Abbess. 31. Explain the concept of frequency in sound. A) Frequency in sound is the taste of the sound wave. B) Frequency in sound is the number of vibrations per second that a sound wave produces, measured in Hertz (Hz). C) Frequency in sound is the color of the sound wave. D) Frequency in sound is the temperature of the sound wave. Show Answer Correct Answer: B) Frequency in sound is the number of vibrations per second that a sound wave produces, measured in Hertz (Hz). 32. Home appliances that causes noise pollution. A) Vaccum Clearner. B) Mixi. C) Both. D) None of the above. Show Answer Correct Answer: C) Both. 33. What happens to the speed of sound as the medium's density increases? A) The speed of sound remains constant. B) The speed of sound decreases. C) The speed of sound increases. D) The speed of sound becomes negative. Show Answer Correct Answer: C) The speed of sound increases. 34. Choose the word that begins with the initial sound /d/. A) Fish. B) Cat. C) Dog. D) Elephant. Show Answer Correct Answer: C) Dog. 35. Frequency higher than ..... are called ultrasound A) 200kHz. B) 2000kHz. C) 20kHz. D) 20000kHz. Show Answer Correct Answer: C) 20kHz. 36. What letters make the long "a" sound in ladle? A) A. B) A-e. C) Ea. D) Ae. Show Answer Correct Answer: A) A. 37. The speed of sound increases as the density of the medium increases. Through which substance would sound waves travel the slowest? A) Gelatin. B) Wood. C) Water. D) Air. Show Answer Correct Answer: D) Air. 38. What is the initial sound in the word 'elephant'? A) /t/. B) /l/. C) /f/. D) /e/. Show Answer Correct Answer: D) /e/. 39. What word has the same middle sound as the word:shout? A) Pout. B) Break. C) Loud. D) Took. Show Answer Correct Answer: A) Pout. 40. 10The audible range of sound in human ear is A) 200Hz to 2000Hz. B) 20Hz to 200Hz. C) 20Hz to2000Hz. D) 20Hz to 20kHz. Show Answer Correct Answer: D) 20Hz to 20kHz. 41. What is a tool that makes sounds louder called? A) Amplifier. B) Outer ear. C) Wavelength. D) Pitch. Show Answer Correct Answer: A) Amplifier. 42. In Jaws, the sound that accompanies the movement of the shark is ..... A) Diegetic. B) Non-Diegetic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-Diegetic. 43. Choose the word that begins with the initial sound /b/. A) Apple. B) Ball. C) Cat. D) Dog. Show Answer Correct Answer: B) Ball. 44. Sounds that are created mainly to create atmosphere, mood and suspense are ..... A) Diegetic. B) Non-Diegetic. C) All the above. D) None of the above. Show Answer Correct Answer: B) Non-Diegetic. 45. In the following sentence what word has the long /u/ sound?-I learned to play the flute in school.- A) Flute. B) Learned. C) Play. D) School. Show Answer Correct Answer: A) Flute. 46. What is the significance of the Doppler effect in sound? A) The Doppler effect in sound is significant as it helps in determining the speed and direction of moving objects based on the observed change in pitch of the sound. B) The Doppler effect in sound has no impact on the perception of sound. C) The Doppler effect in sound is only applicable in outer space. D) The Doppler effect in sound is used to measure the temperature of an object. Show Answer Correct Answer: A) The Doppler effect in sound is significant as it helps in determining the speed and direction of moving objects based on the observed change in pitch of the sound. 47. Foley is the technique of recording every day sounds to enhance the audio quality of a film. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 48. Did Captain Von Trapp join the Nazi Party and Navy? A) Maybe. B) Yes. C) No. D) I'm not sure. Show Answer Correct Answer: C) No. 49. For hearing a distinct sound, the time interval between the original sound and the reflected sound must be at least: A) 1 s. B) 0.1 s. C) 0.2 s. D) 2 s. Show Answer Correct Answer: B) 0.1 s. 50. In the following sentence what word has the long /a/ sound?-I blame the weather for the snow.- A) Blame. B) Weather. C) Snow. D) For. Show Answer Correct Answer: A) Blame. 51. Which word has the same vowel sound as caught? A) Cape. B) Today. C) Wall. D) Eraser. Show Answer Correct Answer: C) Wall. 52. SONAR works on the principle of: A) Refraction of sound. B) Diffraction of sound. C) Reflection of ultrasonic waves. D) Absorption of sound. Show Answer Correct Answer: C) Reflection of ultrasonic waves. 53. Identify the initial sound in the word 'cat'. A) /t/. B) /k/. C) /s/. D) /a/. Show Answer Correct Answer: B) /k/. 54. What letters make the long "a" sound in able? A) Ae. B) A. C) Ea. D) Ay. Show Answer Correct Answer: B) A. 55. I heard the frog ..... A) Woof. B) Cluck. C) Croak. D) None of the above. Show Answer Correct Answer: C) Croak. 56. I heard the duck ..... A) Sing. B) Quack. C) Baa. D) None of the above. Show Answer Correct Answer: B) Quack. 57. For its propagation sound requires ..... A) Air. B) Iron. C) Water. D) All of the above. Show Answer Correct Answer: D) All of the above. 58. Which word has the same sound for c as cat? A) Cent. B) Cid. C) Car. D) Mice. Show Answer Correct Answer: C) Car. 59. What is amplitude in relation to sound? A) The frequency of a sound wave. B) The maximum extent of a vibration or oscillation, measured from the position of equilibrium. C) The pitch of a sound. D) The speed of sound in a medium. Show Answer Correct Answer: B) The maximum extent of a vibration or oscillation, measured from the position of equilibrium. 60. At what age did Evelyn enter the Royal Academy of Music in London? A) 16 Years. B) 17 Years. C) 08 Years. D) 12 Years. Show Answer Correct Answer: B) 17 Years. ← PreviousNext →Related QuizzesScience QuizzesClass 9 QuizzesClass 9 Science Chapter 12 Sound Quiz 1Class 9 Science Chapter 12 Sound Quiz 2Class 9 Science Chapter 12 Sound Quiz 4 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books