Sound Waves Multiple Choice Questions and Answers 9 PDF Download

Learn sound waves multiple choice questions, grade 7 science online test 9 for elementary school degree online courses, distance learning for exam prep. Practice sound waves and noise multiple choice questions (MCQs), sound waves quiz questions and answers for science class for seventh grade science review worksheets.

Study elementary school science multiple choice questions (MCQs): measure of decibel starts from, for free online courses with choices 20, 0, 20000, and 10, sound waves and noise quiz with classroom questions and answers for students with pdf download eBooks. Free science study guide for online learning sound waves and noise quiz questions to attempt multiple choice questions based test.

MCQs on Sound Waves Worksheets 9 Quiz PDF Download

MCQ: Measure of decibel starts from

  1. 0
  2. 20
  3. 20000
  4. 10

A

MCQ: Mixture of high and low sounds is called a

  1. rhythm
  2. bass effect
  3. beat effect
  4. wow effect

A

MCQ: Echoes are formed when sound

  1. strikes a wall and reflects back
  2. strikes a wall and is absorbed
  3. hits the eardrum repeatedly
  4. breaks

A

MCQ: Use of echo to measure distance is known as

  1. echo destination
  2. echolocation
  3. echo displacement
  4. echo dictation

B

MCQ: In a flute, length of air cutting through holes is changed by

  1. changing length
  2. changing valves
  3. fingers
  4. sealers

C