Class 7 Online Courses

Chapter 24: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 24

Sound Waves Multiple Choice Questions PDF Download - 9

The e-Book Sound waves Multiple Choice Questions and Answers (MCQs), sound waves MCQ Quiz PDF, test 9 to study online class 7 science certificate courses. Practice Sound Waves and Noise MCQs PDF, sound waves quiz questions and answers to study distance learning courses. The Sound Waves MCQs App Download: Free learning app for sound waves and noise, musics and musical sound, sound absorption, sound waves and echoes, musical instruments test prep for free online classes.

The Multiple Choice Question (MCQ Quiz): Measure of decibel starts from; "Sound Waves" App Download (Free) with answers 20, 0, 20000 and 10 to study distance learning courses. Solve sound waves and noise quiz questions, download Google eBook (Free Sample) for online school classes.

Sound Waves Questions & Answers PDF Download: MCQ Quiz 9

MCQ 41: Measure of decibel starts from

A) 0
B) 20
C) 20000
D) 10

MCQ 42: The mixture of high and low sounds is called a

A) rhythm
B) bass effect
C) beat effect
D) wow effect

MCQ 43: Echoes are formed when sound

A) strikes a wall and reflects back
B) strikes a wall and is absorbed
C) hits the eardrum repeatedly
D) breaks

MCQ 44: The use of echo to measure distance is known as

A) echo destination
B) echolocation
C) echo displacement
D) echo dictation

MCQ 45: In a flute, the length of air cutting through the holes is changed by

A) changing length
B) changing valves
C) fingers
D) sealers

Sound Waves Learning App & Free Study Apps

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Sound Waves App (Android & iOS)

Sound Waves App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)