Class 7 Online Courses

Class 7 science Practice Tests

Class 7 Science Online Tests

Sound Waves and Noise MCQ Quiz Online PDF Download

The Book Sound waves and noise Multiple Choice Questions (MCQ Quiz) with answers, sound waves and noise MCQ Quiz PDF download to study online 7th grade science certificate courses. Solve Sound Waves Multiple Choice Questions and Answers (MCQs), Sound Waves and Noise quiz answers PDF for virtual elementary school. The e-Book Sound Waves and Noise MCQ App Download: sound absorption, all around sounds, speed of sound test prep for online education programs.

The MCQ: Sound is measured by units that are called PDF, "Sound Waves and Noise" App Download (Free) with hertz (hz), decibels (db), meters (m), and pascal (pa) choices for virtual elementary school. Study sound waves quiz questions, download Amazon eBook (Free Sample) for online education.

Class 7 Science MCQs: Sound Waves and Noise Quiz Questions PDF Download

MCQ: Sound is measured by units that are called

A) Hertz (Hz)
B) Decibels (dB)
C) Meters (m)
D) Pascal (Pa)

MCQ: 20 dB has hundred times more energy than

A) 10 dB
B) 0 dB
C) 5 dB
D) 2 dB

MCQ: 'Eardrum' bursts at

A) 40 dB
B) 80 dB
C) 160 dB
D) 320 dB

MCQ: The level of sound of normal conversation is

A) 10 dB
B) 20 dB
C) 50 dB
D) 60 dB

MCQ: Loud noise can

A) damage our ears
B) make us ill
C) disturb our sleep
D) interrupt conversation

Practice Tests: Class 7 Science Exam Prep

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