Sound Waves Multiple Choice Questions 19 PDF Download

Learn sound waves MCQs, grade 7 science test 19 for learning online courses and test prep, all around sounds multiple choice questions and answers. All around sounds revision test includes science worksheets to learn for class 7 online science for students.

Science multiple choice questions (MCQ) on who discovered 'korotkoff' sounds? with choices dr.nikolai korotkoff, isaac newton, michael faraday and thomas silva edison, all around sounds quiz for competitive exam prep, summative and formative assessment interview questions with answers key. Free science study guide to learn all around sounds quiz to attempt multiple choice questions based test.

MCQs on Sound Waves Quiz PDF Download Worksheets 19

MCQ. Who discovered 'Korotkoff' sounds?

  1. Isaac Newton
  2. Dr.Nikolai Korotkoff
  3. Michael Faraday
  4. Thomas Silva Edison


MCQ. Parts of sound waves where air pressure is lesser, is known as

  1. compression
  2. rarefaction
  3. consolation
  4. expansion


MCQ. Pleasant sound of music depends on its

  1. amplitude
  2. frequency
  3. wavelength
  4. volume


MCQ. Lowest level of frequency a human ear can detect, is

  1. 2 Hz
  2. 20 Hz
  3. 20kHz
  4. 2kHz


MCQ. We can hear 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