Sound Waves Multiple Choice Questions and Answers 19 PDF Download

Learn sound waves multiple choice questions, online grade 7 science test 19 for elementary school degree online courses, distance learning for exam prep. Practice all around sounds multiple choice questions (MCQs), sound waves quiz questions and answers for science class for class 7 online science for students.

Study elementary school science multiple choice questions (MCQs): who discovered 'korotkoff' sounds? with options dr.nikolai korotkoff, isaac newton, michael faraday and thomas silva edison, all around sounds quiz with 7th grade science worksheets online for 7th grade school students and learners. Free science study guide for online learning all around sounds quiz questions to attempt multiple choice questions based test.

MCQs on Sound Waves Worksheets 19 Quiz PDF Download

MCQ: Who discovered 'Korotkoff' sounds?

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

B

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

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

B

MCQ: Pleasant sound of music depends on its

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

B

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

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

B

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

B