Sound Waves Multiple Choice Questions 19 PDF Download

Learn sound waves MCQs, grade 7 science test 19 for online courses learning 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 options dr.nikolai korotkoff, isaac newton, michael faraday and thomas silva edison, all around sounds quiz for competitive exam prep, viva 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

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