Sound Waves Multiple Choice Questions 26 PDF Download

Practice sound waves MCQs, grade 7 online science test 26, sound waves and echoes multiple choice questions and answers. Sound waves and echoes revision test has science worksheets, helping answer key with choices as infrasound, echo, eye sight and ears and sensors of multiple choice questions (MCQ) with sound waves and echoes quiz as 'dolphins' can capture their prey using for competitive exam prep, viva interview questions. Free science study guide to practice sound waves and echoes quiz to attempt multiple choice questions based test.

MCQs on Sound Waves Quiz PDF Download Worksheets 26

MCQ. 'Dolphins' can capture their prey using

  1. echo
  2. infrasound
  3. eye sight
  4. ears and sensors

A

MCQ. When sound travels, the air molecules vibrate

  1. parallel to the sound direction
  2. perpendicular to the sound direction
  3. opposite to the sound direction
  4. in the direction of the sound

D

MCQ. The highest level of frequency which human ear can detect is

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

C

MCQ. Sound travels fastest in

  1. gases
  2. liquids
  3. solids
  4. space

C

MCQ. A hand bell stimulates the

  1. movement of air particles
  2. collision of air particles
  3. vibration of air particles
  4. energy of air particles

C