Sound Waves Multiple Choice Questions 19 PDF Download

Practice sound waves MCQs, grade 7 online science test 19, all around sounds multiple choice questions and answers. All around sounds revision test has science worksheets, helping answer key with choices as dr.nikolai korotkoff, isaac newton, michael faraday and thomas silva edison of multiple choice questions (MCQ) with all around sounds quiz as who discovered 'korotkoff' sounds? for competitive exam prep, viva interview questions. Free science study guide to practice all around sounds quiz to attempt multiple choice questions based test.

MCQs on Sound Waves Quiz PDF Download Worksheets 19

MCQ. Who discovered the 'Korotkoff' sounds?

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

B

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

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

B

MCQ. The pleasant sound of music depends on its

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

B

MCQ. The 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 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

B