Sound Waves MCQ App | Class 7 Science MCQs e-Book PDF Download | 18
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 18 (Chapter 23)

Sound Waves MCQ with Answers PDF – Download Test 18

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The "Sound Waves MCQ" App Download (Android & iOS): A component of our body that reflects x-rays is known as; MCQ with answers: bones, heart, stomach, and brain. Practice Speed of Sound MCQ Questions, download Apple Book (Free Chapter) to succeed digital learning.

Sound Waves MCQ PDF Download – Practice Test 18

MCQ 86: The loss of sound energy depends on:

  1. the density of an object
  2. the matter it is passing through
  3. energy level of sound
  4. resistance in a matter

MCQ 87: A component of our body that reflects x-rays is known as:

  1. heart
  2. bones
  3. stomach
  4. brain

MCQ 88: Sound waves spread out from:

  1. the source
  2. air
  3. water vapors
  4. object

MCQ 89: The longer, the echo takes, the:

  1. shallower the water
  2. the deeper the water
  3. the denser the water
  4. the warmer the water

MCQ 90: Sound moves in air because:

  1. temperature is passed on
  2. humidity is passed on
  3. pressure is passed on
  4. heat is passed on

Class 7 Science Notes App & e-Book – Sound Waves Exam Prep

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