This quiz works best with JavaScript enabled. Home > Cbse > Class 8 > Science > Sound > Class 8 Science Chapter 13 Sound – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 8 Science Chapter 13 Sound Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Find the word that has the same beginning sound as the word:from A) Frog. B) Flip. C) For. D) Some. Show Answer Correct Answer: A) Frog. 2. Mary picks up her flute during a school concert and plays a melody of Mary had a little lamb. Everyone stood up and applauded her. That means Mary just produced ..... sound. A) A pleasant sound. B) An unpleasant sound. C) A horrible sound. D) None of the above. Show Answer Correct Answer: A) A pleasant sound. 3. Astronauts in on the moon would not hear the engines of a lunar lander because ..... A) The lunar soil deadens the sound waves. B) It is too cold on the moon for sound waves to travel. C) There are no air molecules on the moon to carry sound. D) The moon has no magnetic field to carry sound. Show Answer Correct Answer: C) There are no air molecules on the moon to carry sound. 4. Sound is a disturbance that travels through a medium as (a) A) A. a mechanical wave. B) An electromagnetic wave. C) Both mechanical and electromagnetic. D) None of the above. Show Answer Correct Answer: A) A. a mechanical wave. 5. Define frequency in the context of sound. A) Frequency refers to the amplitude of sound waves, indicating their strength. B) Frequency is the number of cycles per second of a sound wave, measured in hertz (Hz). C) Frequency is the loudness of a sound wave, measured in decibels (dB). D) Frequency is the duration of a sound wave, measured in seconds. Show Answer Correct Answer: B) Frequency is the number of cycles per second of a sound wave, measured in hertz (Hz). 6. Why do we hear echoes? A) Sound vibrations bounce off of an object and return to the person who spoke. B) There's a little man that follows us around and repeats everything we say. C) Sound vibrations hit an object. D) None of the above. Show Answer Correct Answer: A) Sound vibrations bounce off of an object and return to the person who spoke. 7. Electromagnetic waves with higher frequencies have wavelengths that are A) Shorter. B) Longer. C) All the above. D) None of the above. Show Answer Correct Answer: A) Shorter. 8. Find the missing welded sound:Mom went to the b ..... with the cash. A) Ang. B) Ong. C) Ank. D) None of the above. Show Answer Correct Answer: C) Ank. 9. How high or low a sound is, is called A) Pitch. B) Sound. C) Volume. D) None of the above. Show Answer Correct Answer: A) Pitch. 10. Sound can travel through different mediums like gas, water and walls A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: B) True. 11. Suportif, komunikatif dan fokus konsumen merupakan ciri dari sifat ..... A) Keterlibatan. B) Kesadaran. C) Aktualisasi diri. D) Akuntabilitas. Show Answer Correct Answer: A) Keterlibatan. 12. The distance from the resting position to the crest of a wave. A) Amplitude. B) Pitch. C) Frequency. D) Wavelength. Show Answer Correct Answer: A) Amplitude. 13. What is the main idea of the section "Breathing and Moaning into a microphone" ? A) Haggerwood makes the sounds he needs either on his own, by using sounds in nature, or hiring someone to help him. B) Haggerwood records himself moaning into the microphone to resemble a zombie. C) Haggerwood hires people to help him with the sounds. D) Haggerwood still sticks to the basics. Show Answer Correct Answer: A) Haggerwood makes the sounds he needs either on his own, by using sounds in nature, or hiring someone to help him. 14. A luminous object is A) Something that stores light energy. B) Something that absorbs light energy. C) Something that captures light energy. D) Something that emits light energy. Show Answer Correct Answer: D) Something that emits light energy. 15. Which part of the ear changes sound vibrations into signals sent to the brain? A) The cochlea. B) The eardrum. C) The auditory nerve. D) The small bones. Show Answer Correct Answer: A) The cochlea. 16. What is a sound? A) Something you hear. B) Something you smell. C) Something you see. D) Something you taste. Show Answer Correct Answer: A) Something you hear. 17. 9) The girls are models ..... always on magazine covers. A) There. B) Their. C) They're. D) None of the above. Show Answer Correct Answer: C) They're. 18. Ty gives money to **** causes. A) Worthwhile. B) Worthele. C) Worthwille. D) Wurthwhile. Show Answer Correct Answer: A) Worthwhile. 19. The to-and-fro rapid movement of a particle about fixed point in an object is called A) Vibration. B) Frequency. C) Amplitude. D) None of the above. Show Answer Correct Answer: A) Vibration. 20. How many moles of carbon atoms are there in 5g of carbon? A) 7 mol. B) 17 mol. C) 60 mol. D) 0.42 mol. Show Answer Correct Answer: D) 0.42 mol. 21. The vibrations of frequency greater than 20, 000 Hz are called ..... vibrations. A) Supersonic. B) Ultrasonic. C) Sonic. D) Infrasonic. Show Answer Correct Answer: B) Ultrasonic. 22. 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. 23. Which of the following shows proper use of sound? A) Shouting to someone near you. B) Loud music at night. C) Reciting oratorical piece. D) Tapping the table during class hour. Show Answer Correct Answer: C) Reciting oratorical piece. 24. What is the sound that leads to a pleasing effect on the ear? A) Inaudible Sound. B) Musical Sound. C) Ultrasonics. D) Noise. Show Answer Correct Answer: B) Musical Sound. 25. The speed of sound in air at 0$^{o}$C is nearly: A) 1450 m s$^{-1}$. B) 5100 m s$^{-1}$. C) 450$^{-1}$. D) 330m s$^{-1}$. Show Answer Correct Answer: D) 330m s$^{-1}$. 26. Did you **** through the telescope? A) Peat. B) Pear. C) Prer. D) Peer. Show Answer Correct Answer: D) Peer. 27. 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. 28. 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. 29. 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. 30. Which two words make the contraction shouldn't? A) Would not. B) Should not. C) Could not. D) Can not. Show Answer Correct Answer: B) Should not. 31. Identify the ending sound in the word 'bat'. A) B. B) T. C) A. D) D. Show Answer Correct Answer: B) T. 32. What do seismic (earthquakes) waves and sound waves have in common? A) They are mechanical waves. B) They are electromagnetic waves. C) They are phonetic waves. D) They are permanent waves. Show Answer Correct Answer: A) They are mechanical waves. 33. 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. 34. Find the word that has the same beginning sound as ..... kite. A) King. B) Fight. C) Bite. D) Fly. Show Answer Correct Answer: A) King. 35. The old rope is ..... A) Lewse. B) Luese. C) Loose. D) Loese. Show Answer Correct Answer: C) Loose. 36. 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) Carbon dioxide. B) Water. C) Ethanol. D) Aluminum. Show Answer Correct Answer: D) Aluminum. 37. ..... is the highness or lowness of a sound.(Hint:Think about our sound song.) A) Pitch. B) Amplitude. C) Volume. D) Vibration. Show Answer Correct Answer: A) Pitch. 38. 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. 39. 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. 40. 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. 41. Which word can be made into a new word by adding the suffix-er? A) Cup. B) Work. C) Chair. D) Boss. Show Answer Correct Answer: B) Work. 42. What is the characteristic that allows distinguishing between musical notes emitted by different musical instruments or voices? A) Quality. B) Loudness. C) Pitch. D) Amplitude. Show Answer Correct Answer: A) Quality. 43. How excited are you for Halloween? A) SUPER EXCITED!. B) I don't care. I don't like Halloween. C) All the above. D) None of the above. Show Answer Correct Answer: A) SUPER EXCITED!. 44. The higher pitched sounds make the vibration move ..... A) Slowly. B) Quickly. C) All the above. D) None of the above. Show Answer Correct Answer: B) Quickly. 45. What is the beginning sound in the word 'snake'? A) T. B) S. C) N. D) M. Show Answer Correct Answer: B) S. 46. On increasing the temperature, the speed of sound in air: A) Decrease just half the speed. B) Decrease. C) Remain same. D) Increase. Show Answer Correct Answer: D) Increase. 47. Bersemangat, Tekun dan Mandiri merupakan ciri dari sifat ..... A) Akuntabilitas. B) Kesadaran. C) Keterlibatan. D) Aktualisasi diri. Show Answer Correct Answer: D) Aktualisasi diri. 48. Echo is the term used for the sound that is reflected back to its source. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 49. During a science class, Jaden, Jayden, and Jackson were discussing the electromagnetic spectrum. Which part of the electromagnetic spectrum can we see? A) Visible light. B) Gamma rays. C) Radio waves. D) None of the above. Show Answer Correct Answer: A) Visible light. 50. If the direction of the vibration of particles is parallel to the direction of the propagation of wave, then the wave is a ..... A) Transverse wave. B) Longitudinal wave. C) Electromagnetic wave. D) All the above. Show Answer Correct Answer: B) Longitudinal wave. 51. ..... materials allow some light to pass through, but some light is scattered. A) Transparent. B) Concave. C) Translucent. D) Opaque. Show Answer Correct Answer: C) Translucent. 52. What will result in an echo? A) Sound being bounced around a small room. B) Reflection of sound far from the reflecting surface. C) Sound being absorbed by objects in a large room. D) Reflection of sound very close to the reflecting surface. Show Answer Correct Answer: B) Reflection of sound far from the reflecting surface. 53. The ear functions for ..... A) Balance. B) Hearing. C) Both balance and hearing. D) None of the above. Show Answer Correct Answer: C) Both balance and hearing. 54. Which of the following best describes the nature of light waves? A) Light waves are mechanical and longitudinal. B) Light waves are mechanical and transverse. C) Light waves are electromagnetic and longitudinal. D) Light waves are electromagnetic and transverse. Show Answer Correct Answer: D) Light waves are electromagnetic and transverse. 55. Which of the following substances would cause light to be scattered? A) Clear glass. B) A mirror. C) Cardboard. D) Smog. Show Answer Correct Answer: D) Smog. 56. Which long vowel sound do you hear the word FAVORED? A) Long A. B) Long O. C) Long E. D) Long I. Show Answer Correct Answer: A) Long A. 57. What sound does the "ea" make in this word:breath A) Long e. B) Short e. C) Long a. D) None of the above. Show Answer Correct Answer: B) Short e. 58. How is the resolution of an image calculated? A) Sample rate * sample resolution * length in seconds. B) Number of pixels squared. C) Colour depth * number of pixels. D) Width in pixels * height in pixels. Show Answer Correct Answer: D) Width in pixels * height in pixels. 59. C, k and ck make the 'k' sound. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 60. High pitched sounds have ..... wavelengths A) Long. B) Short. C) No. D) None of the above. Show Answer Correct Answer: B) Short. ← PreviousNext →Related QuizzesScience QuizzesClass 8 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 8Class 8 Science Chapter 13 Sound Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books