{"id":762199,"date":"2025-04-18T11:03:17","date_gmt":"2025-04-18T05:33:17","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=762199"},"modified":"2025-04-18T11:12:53","modified_gmt":"2025-04-18T05:42:53","slug":"class-8-science-chapter-13-sound-mcq-with-answer","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/mcqs\/class-8-science-sound\/","title":{"rendered":"Class 8 Science Chapter 13 Sound MCQ with Answer"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_37 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" style=\"display: none;\"><label for=\"item\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input type=\"checkbox\" id=\"item\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' style='display:block'><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/infinitylearn.com\/surge\/mcqs\/class-8-science-sound\/#CBSE_Class_8_Science_Chapter_13_Sound_-_Overview\" title=\"CBSE Class 8 Science Chapter 13 Sound &#8211; Overview\">CBSE Class 8 Science Chapter 13 Sound &#8211; Overview<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/infinitylearn.com\/surge\/mcqs\/class-8-science-sound\/#MCQ_Questions_for_CBSE_Class_8_Science_Chapter_13_-_Sound\" title=\"MCQ Questions for CBSE Class 8 Science Chapter 13 \u2013 Sound\">MCQ Questions for CBSE Class 8 Science Chapter 13 \u2013 Sound<\/a><\/li><\/ul><\/nav><\/div>\n<p><strong>Sound Class 8 MCQ:<\/strong> Looking to sharpen your understanding of CBSE Class 8 Science Chapter 13 \u2014 Sound? Practicing <strong><a href=\"https:\/\/infinitylearn.com\/surge\/mcqs\/class-8\/\">MCQ questions for Class 8<\/a> Science<\/strong> with answers is a smart way to test your knowledge and improve your exam readiness. These <strong>CBSE Class 8 Science Sound MCQ questions<\/strong> are designed as per the latest <strong><a href=\"https:\/\/infinitylearn.com\/surge\/cbse\/cbse-syllabus\/\">CBSE syllabus<\/a><\/strong> and are useful for students from <strong>CBSE, KVS,<\/strong> and other boards.<\/p>\n<p>Whether you are revising concepts or preparing for class tests, these multiple-choice questions offer quick practice, clear answers, and strong concept clarity, making your science learning easy and effective.<\/p>\n<p><img loading=\"lazy\" class=\"alignnone wp-image-762210 size-full\" src=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1.jpg\" alt=\"sound class 8 mcq\" width=\"1440\" height=\"760\" srcset=\"https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1.jpg 1440w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1-300x158.jpg 300w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1-1024x540.jpg 1024w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1-768x405.jpg 768w, https:\/\/infinitylearn.com\/surge\/wp-content\/uploads\/2025\/04\/Class-8-Science-Chapter-9-Sound-MCQs-with-Answer-copy-1-150x79.jpg 150w\" sizes=\"(max-width: 1440px) 100vw, 1440px\" \/><\/p>\n<h2><span class=\"ez-toc-section\" id=\"CBSE_Class_8_Science_Chapter_13_Sound_-_Overview\"><\/span>CBSE Class 8 Science Chapter 13 Sound &#8211; Overview<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>CBSE Class 8 Science Chapter 13 \u2013 Sound introduces students to the fascinating world of sound, its production, properties, and behavior. This chapter explains important concepts like how sound is produced, how it travels through different mediums, the characteristics of sound waves (frequency, amplitude, and time period), the speed of sound in solids, liquids, and gases, and the difference between musical sound and noise. Students also learn about audible and inaudible sounds, vibration, echo, reverberation, and the human ear&#8217;s structure and working.<\/p>\n<p>This chapter is very important for exams as it helps build a strong foundation for higher classes, and questions from this chapter usually <strong>carry 2 to 3 marks<\/strong> in short answers and<strong> 5 marks in long answers<\/strong> in CBSE exams.<\/p>\n<p>To make learning easier and to strengthen understanding, we have provided a set of well-prepared MCQ questions for Class 8 Science Chapter 9 Sound with answers. These MCQs will help students revise key concepts, improve their problem-solving speed, and prepare confidently for class tests and final exams.<\/p>\n<p style=\"text-align: center;\"><strong>Also Check: <a href=\"https:\/\/infinitylearn.com\/surge\/study-materials\/ncert-solutions\/class-8\/science\/chapter-13-sound\/\">NCERT Solutions for Class 8 Science Chapter 13<\/a> |  <a href=\"https:\/\/infinitylearn.com\/surge\/study-material\/cbse-notes\/class-8\/science\/sound-class-8-notes-science-chapter-13\/\">Sound Class 8 Notes<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"MCQ_Questions_for_CBSE_Class_8_Science_Chapter_13_-_Sound\"><\/span>MCQ Questions for CBSE Class 8 Science Chapter 13 \u2013 Sound<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>1. Sound is produced by:<\/strong><br \/>\nA) Still objects<br \/>\nB) Vibrating bodies<br \/>\nC) Moving air only<br \/>\nD) Light waves<br \/>\nAnswer: B) Vibrating bodies<\/p>\n<p><strong>2. The back-and-forth motion of an object producing sound is called:<\/strong><br \/>\nA) Revolution<br \/>\nB) Oscillation<br \/>\nC) Vibration<br \/>\nD) Rotation<br \/>\nAnswer: C) Vibration<\/p>\n<p><strong>3. The medium through which sound travels fastest is:<\/strong><br \/>\nA) Air<br \/>\nB) Vacuum<br \/>\nC) Water<br \/>\nD) Steel<br \/>\nAnswer: D) Steel<\/p>\n<p><strong>4. Sound cannot travel through:<\/strong><br \/>\nA) Solids<br \/>\nB) Liquids<br \/>\nC) Vacuum<br \/>\nD) Gases<br \/>\nAnswer: C) Vacuum<\/p>\n<p><strong>5. The number of vibrations per second is called:<\/strong><br \/>\nA) Pitch<br \/>\nB) Amplitude<br \/>\nC) Frequency<br \/>\nD) Wavelength<br \/>\nAnswer: C) Frequency<\/p>\n<p><strong>6. The unit of frequency is:<\/strong><br \/>\nA) Decibel<br \/>\nB) Hertz<br \/>\nC) Newton<br \/>\nD) Joule<br \/>\nAnswer: B) Hertz<\/p>\n<p><strong>7. Loudness of sound is determined by:<\/strong><br \/>\nA) Frequency<br \/>\nB) Amplitude<br \/>\nC) Speed<br \/>\nD) Wavelength<br \/>\nAnswer: B) Amplitude<\/p>\n<p><strong>8. Which part of the human ear collects sound waves?<\/strong><br \/>\nA) Cochlea<br \/>\nB) Eardrum<br \/>\nC) Pinna<br \/>\nD) Auditory nerve<br \/>\nAnswer: C) Pinna<\/p>\n<p><strong>9. Sound waves are:<\/strong><br \/>\nA) Transverse waves<br \/>\nB) Longitudinal waves<br \/>\nC) Circular waves<br \/>\nD) Random waves<br \/>\nAnswer: B) Longitudinal waves<\/p>\n<p><strong>10. The speed of sound in air is approximately:<\/strong><br \/>\nA) 330 m\/s<br \/>\nB) 1500 m\/s<br \/>\nC) 5000 m\/s<br \/>\nD) 3 x 10^8 m\/s<br \/>\nAnswer: A) 330 m\/s<\/p>\n<p><strong>11. A sound wave that is too high for humans to hear is called:<\/strong><br \/>\nA) Infrasound<br \/>\nB) Ultrasound<br \/>\nC) Noise<br \/>\nD) Echo<br \/>\nAnswer: B) Ultrasound<\/p>\n<p><strong>12. The human ear can normally hear sounds between:<\/strong><br \/>\nA) 20 Hz to 20,000 Hz<br \/>\nB) 100 Hz to 50,000 Hz<br \/>\nC) 200 Hz to 5,000 Hz<br \/>\nD) 1 Hz to 10 Hz<br \/>\nAnswer: A) 20 Hz to 20,000 Hz<\/p>\n<p><strong>13. The time taken to complete one vibration is called:<\/strong><br \/>\nA) Speed<br \/>\nB) Wavelength<br \/>\nC) Period<br \/>\nD) Frequency<br \/>\nAnswer: C) Period<\/p>\n<p><strong>14. Sound waves require a ________ to travel:<\/strong><br \/>\nA) Medium<br \/>\nB) Battery<br \/>\nC) Light source<br \/>\nD) Circuit<br \/>\nAnswer: A) Medium<\/p>\n<p><strong>15. The sensation of sound stops as soon as the vibration:<\/strong><br \/>\nA) Starts<br \/>\nB) Continues<br \/>\nC) Stops<br \/>\nD) Becomes faster<br \/>\nAnswer: C) Stops<\/p>\n<p><strong>16. In humans, the part responsible for sending sound signals to the brain is:<\/strong><br \/>\nA) Pinna<br \/>\nB) Eardrum<br \/>\nC) Cochlea<br \/>\nD) Vocal cords<br \/>\nAnswer: C) Cochlea<\/p>\n<p><strong>17. When sound bounces off a surface and returns, it is called:<\/strong><br \/>\nA) Diffusion<br \/>\nB) Echo<br \/>\nC) Refraction<br \/>\nD) Absorption<br \/>\nAnswer: B) Echo<\/p>\n<p><strong>18. The maximum disturbance from the rest position in a sound wave is called:<\/strong><br \/>\nA) Frequency<br \/>\nB) Wavelength<br \/>\nC) Amplitude<br \/>\nD) Time period<br \/>\nAnswer: C) Amplitude<\/p>\n<p><strong>19. The pitch of a sound depends on:<\/strong><br \/>\nA) Frequency<br \/>\nB) Speed<br \/>\nC) Medium<br \/>\nD) Amplitude<br \/>\nAnswer: A) Frequency<\/p>\n<p><strong>20. The softest sound a human can hear is called:<\/strong><br \/>\nA) Threshold of hearing<br \/>\nB) Decibel limit<br \/>\nC) Ultrasound<br \/>\nD) Background noise<br \/>\nAnswer: A) Threshold of hearing<\/p>\n<p><strong>21. Which one of these is not a characteristic of sound?<\/strong><br \/>\nA) Loudness<br \/>\nB) Pitch<br \/>\nC) Frequency<br \/>\nD) Weight<br \/>\nAnswer: D) Weight<\/p>\n<p><strong>22. The sound produced by a tuning fork is:<\/strong><br \/>\nA) Random noise<br \/>\nB) Musical and clear<br \/>\nC) Electrical sound<br \/>\nD) No sound at all<br \/>\nAnswer: B) Musical and clear<\/p>\n<p><strong>23. The sound produced by humans is created by:<\/strong><br \/>\nA) Eardrum<br \/>\nB) Vocal cords<br \/>\nC) Heartbeat<br \/>\nD) Windpipe<br \/>\nAnswer: B) Vocal cords<\/p>\n<p><strong>24. The repeated reflection of sound in a large hall leads to:<\/strong><br \/>\nA) Noise<br \/>\nB) Reverberation<br \/>\nC) Echo<br \/>\nD) Refraction<br \/>\nAnswer: B) Reverberation<\/p>\n<p><strong>25. The unit used to measure sound intensity is:<\/strong><br \/>\nA) Decibel (dB)<br \/>\nB) Newton<br \/>\nC) Hertz<br \/>\nD) Joule<br \/>\nAnswer: A) Decibel (dB)<\/p>\n<p><strong>26. In outer space, astronauts cannot hear sounds because:<\/strong><br \/>\nA) The space suits block sound<br \/>\nB) There is no medium for sound to travel<br \/>\nC) Their radios are off<br \/>\nD) Sound moves too fast<br \/>\nAnswer: B) There is no medium for sound to travel<\/p>\n<p><strong>27. Sound waves carry:<\/strong><br \/>\nA) Light energy<br \/>\nB) Magnetic energy<br \/>\nC) Mechanical energy<br \/>\nD) Electrical energy<br \/>\nAnswer: C) Mechanical energy<\/p>\n<p><strong>28. What causes the sound of thunder to be heard after lightning is seen?<\/strong><br \/>\nA) Sound moves slower than light<br \/>\nB) Light moves slower than sound<br \/>\nC) Sound does not travel<br \/>\nD) Sound and light travel at the same speed<br \/>\nAnswer: A) Sound moves slower than light<\/p>\n<p><strong>29. Which property of sound makes it possible to recognize a person\u2019s voice?<\/strong><br \/>\nA) Pitch<br \/>\nB) Loudness<br \/>\nC) Quality or Timbre<br \/>\nD) Frequency<br \/>\nAnswer: C) Quality or Timbre<\/p>\n<p><strong>30. Sound waves travel through air by:<\/strong><br \/>\nA) Electric currents<br \/>\nB) Light pulses<br \/>\nC) Vibrations of air particles<br \/>\nD) Magnetic fields<br \/>\nAnswer: C) Vibrations of air particles<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Sound Class 8 MCQ: Looking to sharpen your understanding of CBSE Class 8 Science Chapter 13 \u2014 Sound? 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