Class 8 Online Courses

Chapter 12: Class 8 Science Exam Tests

Class 8 Science MCQs - Chapter 12

Sound and Hearing Quiz Questions and Answers PDF - 3

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Sound and Hearing Questions & Answers PDF Download: MCQ Quiz 3

MCQ 11: The SI unit of frequency is

A) hertz
B) Newton
C) Pascal
D) ampere

MCQ 12: The regions where molecules spread out are called

A) rarefactions
B) compressions
C) digressions
D) progressions

MCQ 13: An instrument which can produce a number a sounds with high and low frequencies and pitch is the

A) violin
B) piano
C) guitar
D) double bass

MCQ 14: Ultrasound and infrasound are not detected by

A) humans
B) animals
C) birds
D) all of them

MCQ 15: A measure of amount of energy in a sound wave is called its

A) wavelength
B) frequency
C) amplitude
D) all of them

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8th Grade Science App (Android & iOS)

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6th Grade Science App (Android & iOS)

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Earth Science App (Android & iOS)