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Learn Sound and vacuum Multiple Choice Questions (MCQ Quiz) with Answers PDF (Sound and Vacuum MCQ PDF e-Book) download to learn Class 7 Science Tests. Study Sound Waves Multiple Choice Questions and Answers (MCQs), Sound and Vacuum quiz answers PDF to prepare science exams. Free Sound and Vacuum MCQ App: Download the Class 7 Science Study App to learn sound absorption, all around sounds, speed of sound test prep for science achievement learning systems.

Free "Sound and Vacuum MCQ" App Download with MCQ: We cannot hear alarm of a clock if there is; with answers: vacuum in the jar, air in the jar, liquid in the jar, and solid in the jar to prepare science exams. Solve Sound Waves Quiz Questions, download Apple Book (Free Chapter) to engage virtual science education.

Sound and Vacuum MCQs PDF Download – Prep Test

MCQ 1: We cannot hear alarm of a clock if there is:

  1. vacuum in the jar
  2. air in the jar
  3. liquid in the jar
  4. solid in the jar

MCQ 2: Sound can travel through air because:

  1. air has pressure
  2. air has humidity
  3. air has particles
  4. air has temperature

MCQ 3: An example to demonstrate the effect of sound in vacuum is:

  1. vacuum bell jar
  2. simple bell jar
  3. air pump and ring
  4. air pump and clock

MCQ 4: Sound cannot travel in vacuum because:

  1. there is no pressure in vacuum
  2. there is no air in vacuum
  3. there is no humidity in vacuum
  4. there are no particle in vacuum

MCQ 5: We can hear the voice of alarm clock when there is:

  1. vacuum in the jar
  2. air in the jar
  3. liquid in the jar
  4. space in the jar

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