Sound Class 8 Case Study Questions Science Chapter 10

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Last Updated on September 12, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 8 science. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 8 science. In this article, you will find case study questions for cbse class 8 science chapter 10 Sound.

ChapterSound
Type of QuestionsCase Study Questions
Nature of QuestionsCompetency Based Questions
BoardCBSE
Class8
SubjectScience
Useful forClass 8 Studying Students
Answers providedYes
Difficulty levelMentioned
Important LinkClass 8 Science Chapterwise Case Study

Case Study Questions on Sound

Questions

Question 1:

Read the given passage below and answer the question:

Raghav kept a mini sound player in each of two similar containers. He then tightly covered both the containers with stretched plastic sheets. He placed some tiny rubber beads on the surface of the sheets. The picture shows what Raghav noticed when he turned on the sound player.

(i) Which of these questions can be answered using the result of Raghav’s activity?
(a) Does sound travel as waves?
(b) Does sound produce vibration?
(c) Does sound travel through a vacuum?
(d) Does sound travel faster in solids than in gases?

Difficulty Level: Easy

Ans. Option (b) is correct.
Explanation: The question “Does sound produce vibration?” can be answered using the result of Raghav’s activity because the rubber beads started jumping due to vibrations produced when the sound player is turned on.

(ii) Would the result of Raghav’s activity change if fewer beads had been used? Explain your answer.

Difficulty Level: Easy

Ans. No, the result would remain the same. This is because the vibration would still make the beads jump no matter what the number of beads present.

Also check

Topics from which case study questions may be asked

  • Understand how sound is produced?
  • Understand vibration as a cause of the sound.
  • Learn different types of sound.
  • Learn about the medium of sound propagation.
  • Understand the terms Frequency, Amplitude and Time period of vibration.
  • Learn about audible and inaudible sounds.
  • To understand noise pollution and its ill effects.

Sound is anything that we hear. It is a form of energy. Vibrations in any object produces sound. This chapter deals with the concept of sound.

Helpful Links for CBSE Class 8 Science Preparation

Frequently Asked Questions (FAQs) on Sound Case Study Questions

Q1: What are case study questions for CBSE examinations?

A1: Case study questions in CBSE examinations typically involve scenarios or real-life examples, requiring students to apply their understanding of concepts to solve problems or analyze situations.

Q2: Why are case study questions important for understanding class 8 science chapters?

A2: Case study questions provide a practical context for students to apply theoretical knowledge to real-world situations, fostering deeper understanding and critical thinking skills.

Q3: How should students approach answering case study questions for CBSE?

A3: Students should carefully read the case study, identify the key issues or problems presented, analyze the information provided, apply relevant concepts and principles of sound, and formulate well-supported solutions or responses.

Q4: Are there any resources available online for students to practice case study questions on class 8 science chapters for CBSE exams?

A4: Yes, several educational websites offer case study questions for CBSE students preparing for science examinations. We also offer a collection of case study questions for all classes and subject on our website. Visit our website to access these questions and enhance your learning experience.

Q5: How can students effectively prepare for case study questions on sound for CBSE exams?

A5: Effective preparation strategies include regular revision of concepts, solving practice questions, analyzing case studies from previous exams, seeking clarification on doubts, and consulting with teachers or peers for guidance and support.

Q6: How can teachers incorporate case study questions on sound class 8 science into classroom teaching?

A6: Teachers can integrate case studies into lesson plans, group discussions, or interactive activities to engage students in active learning, promote problem-solving skills, and facilitate a deeper understanding of concepts of sound.

Q7: Define the terms Infrasonic and Ultrasonic sounds. Can we hear them?

A7: Sound with frequency less than 20 Hz frequency is called infrasonic sound and with frequency more than 20 kHz is called ultrasonic sound. These types of sounds are inaudible to humans.

Q8: Which part of the human ear vibrates to hear the sounds?

A8: A stretched membrane in the outer ear called ear drum vibrates when sound waves fall on it and enable one to hear the sound.

Q9: What is amplitude? How it affects loudness of sound?

A9: Amplitude is the maximum displacement of a vibrating object from its mean or central position. Loudness of sound depends upon its amplitude. Loudness of sound is proportional to the square of the amplitude. When the amplitude of vibration is large the sound produced is loud. When the amplitude is small, the sound produced is feeble.

Q10: What are the harmful effects of noise pollution on our health?

A10: Noise pollution can be quite dangerous for our health. Lack of sleep, hypertension (high blood pressure), anxiety and many more health disorders may be caused by noise pollution. A person who is exposed to a loud sound continuously may get temporary or even permanent impairment of hearing

Friction Class 8 Case Study Questions Science Chapter 9

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