Class 7 Science MCQs - Chapter 23
Sound Waves Multiple Choice Questions (MCQs) PDF Download - 17
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The Sound waves Multiple Choice Questions (MCQs) with Answers PDF (sound waves MCQs PDF e-Book) download Ch. 23-17 to study Grade 7 Science Course. Learn Sound Waves Quiz Questions and Answers to learn online homeschool courses. The Sound Waves MCQs App Download: Free learning app for speed of sound, frequency and pitch, musics and musical sound test prep for online teaching certification programs.
The MCQ: If we put our ear by the wall, we will; "Sound Waves" App Download (Free) with answers: Hear everything from other side; Not hear anything; Some sounds from other side but not clearly; Noise of traffic, aircrafts and machines; to learn online homeschool courses. Solve Speed of Sound MCQ Questions, download Google eBook (Free Sample) for distance learning classes.
Sound Waves MCQs with Answers PDF Download: Quiz 17
If we put our ear by the wall, we will
- not hear anything
- hear everything from other side
- some sounds from other side but not clearly
- noise of traffic, aircrafts and machines
Short waves have
- low energy
- high energy
- same energy as long waves
- low frequency
Musical sounds are organized into
- notes
- pitch
- wave fronts
- phases
If frequency of sound wave is 100 Hz, it will send
- 1 wave in 100 seconds
- 2 waves in 50 seconds
- 100 waves in one second
- 50 waves in two seconds
As we turn older, our ears get
- less sensitive to low pitched sound
- more sensitive to low pitched sound
- less sensitive to high pitched sound
- more sensitive to high pitched sound
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