This quiz works best with JavaScript enabled. Home > Class 8 > Class 8 Science Chapter 13 Sound – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 13 Sound Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which word is has a Schwa sound in it? A) Apple. B) Paper. C) About. D) Plastic. Show Answer Correct Answer: C) About. 2. The vibrations of frequency greater than 20, 000 Hz are called ..... vibrations. A) Ultrasonic. B) Infrasonic. C) Supersonic. D) Sonic. Show Answer Correct Answer: A) Ultrasonic. 3. What is the main idea of the section "Halloween sounds are timeless" ? A) Halloween is everyone's favorite holiday. B) Halloween sounds are popular because people love sounds that make them shiver. C) People love scary things. D) Recording devices are cheaper so there are more scary noises out there. Show Answer Correct Answer: B) Halloween sounds are popular because people love sounds that make them shiver. 4. Which of the following shows proper use of sound? A) Loud music at night. B) Reciting oratorical piece. C) Shouting to someone near you. D) Tapping the table during class hour. Show Answer Correct Answer: B) Reciting oratorical piece. 5. What is the sound that leads to a pleasing effect on the ear? A) Inaudible Sound. B) Noise. C) Musical Sound. D) Ultrasonics. Show Answer Correct Answer: C) Musical Sound. 6. The speed of sound in air at 0$^{o}$C is nearly: A) 330m s$^{-1}$. B) 1450 m s$^{-1}$. C) 5100 m s$^{-1}$. D) 450$^{-1}$. Show Answer Correct Answer: A) 330m s$^{-1}$. 7. Did you **** through the telescope? A) Peat. B) Pear. C) Peer. D) Prer. Show Answer Correct Answer: C) Peer. 8. Longitudinal waves are? A) In these waves the individual particles of the medium move in a direction perpendicular to the direction of propagation of the disturbance. B) In these waves the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance. C) Both 1 and 2. D) None of these. Show Answer Correct Answer: B) In these waves the individual particles of the medium move in a direction parallel to the direction of propagation of the disturbance. 9. Called A) /id/. B) /d/. C) /t/. D) None of the above. Show Answer Correct Answer: B) /d/. 10. We have natural sound and ..... A) Playing sound. B) Artificial sound. C) All the above. D) None of the above. Show Answer Correct Answer: B) Artificial sound. 11. Where is the Cochlea located A) The Inner Ear. B) The Middle Ear. C) The Outer Ear. D) None of the above. Show Answer Correct Answer: A) The Inner Ear. 12. Which two words make the contraction shouldn't? A) Could not. B) Would not. C) Should not. D) Can not. Show Answer Correct Answer: C) Should not. 13. Identify the ending sound in the word 'bat'. A) T. B) A. C) B. D) D. Show Answer Correct Answer: A) T. 14. What do seismic (earthquakes) waves and sound waves have in common? A) They are phonetic waves. B) They are mechanical waves. C) They are electromagnetic waves. D) They are permanent waves. Show Answer Correct Answer: B) They are mechanical waves. 15. If a vibration goes back and forth rapidly (fast), what kind of sound waves does it make in the air:short waves or long waves? A) A fast vibration makes long waves. B) A fast vibration doesn't make any waves. C) A fast vibration makes short waves. D) None of the above. Show Answer Correct Answer: C) A fast vibration makes short waves. 16. Find the word that has the same beginning sound as ..... kite. A) Fight. B) King. C) Fly. D) Bite. Show Answer Correct Answer: B) King. 17. The old rope is ..... A) Luese. B) Loose. C) Loese. D) Lewse. Show Answer Correct Answer: B) Loose. 18. Austin is working on a science project about acoustics and needs to determine in which material sound waves travel fastest. Can you help him choose the right material? A) Water. B) Ethanol. C) Carbon dioxide. D) Aluminum. Show Answer Correct Answer: D) Aluminum. 19. ..... is the highness or lowness of a sound.(Hint:Think about our sound song.) A) Amplitude. B) Pitch. C) Volume. D) Vibration. Show Answer Correct Answer: B) Pitch. 20. Prizes A) /iz/. B) /s/. C) /z/. D) None of the above. Show Answer Correct Answer: A) /iz/. 21. Which word has the same sound as the first c in bicycle? A) Kitchen. B) Quick. C) Fact. D) Also. Show Answer Correct Answer: D) Also. 22. During a science class, asked Sarayi which part of the ear converts vibrations into nerve signals that we interpret as sound. What is the correct answer? A) Outer ear function. B) Cochlea. C) Eardrum. D) None of the above. Show Answer Correct Answer: B) Cochlea. 23. Light is a disturbance that travels through a medium as A) Both mechanical and electromagnetic waves. B) A mechanical wave. C) An electromagnetic wave. D) None of the above. Show Answer Correct Answer: C) An electromagnetic wave. 24. Which word can be made into a new word by adding the suffix-er? A) Work. B) Boss. C) Cup. D) Chair. Show Answer Correct Answer: A) Work. 25. What is the characteristic that allows distinguishing between musical notes emitted by different musical instruments or voices? A) Loudness. B) Pitch. C) Amplitude. D) Quality. Show Answer Correct Answer: D) Quality. ← PreviousNext →Related QuizzesClass 8 Science Chapter 13 Sound Quiz 1Class 8 Science Chapter 13 Sound Quiz 2Class 8 Science Chapter 13 Sound Quiz 3Class 8 Science Chapter 13 Sound Quiz 4Class 8 Science Chapter 13 Sound Quiz 5Class 8 Science Chapter 13 Sound Quiz 6Class 8 Science Chapter 13 Sound Quiz 7Class 8 Science Chapter 13 Sound Quiz 8Class 8 Science Chapter 13 Sound Quiz 9Class 8 Science Chapter 13 Sound Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books