Class 7 Science MCQs - Chapter 24
Sound Waves MCQ (Multiple Choice Questions) PDF - 26
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The MCQs: 'Dolphins' can capture their prey using; "Sound Waves" App Download Android & iOS (Free) with answers infrasound, echo, eye sight and ears and sensors to study online certificate courses. Practice sound waves and echoes quiz questions, download Apple Book (Free Sample) for distance learning.
Sound Waves Questions & Answers PDF Download: MCQ Quiz 26
MCQ 126: 'Dolphins' can capture their prey using
- echo
- infrasound
- eye sight
- ears and sensors
MCQ 127: When sound travels, the air molecules vibrate
- parallel to the sound direction
- perpendicular to the sound direction
- opposite to the sound direction
- in the direction of the sound
MCQ 128: The highest level of frequency which human ear can detect is
- 2 Hz
- 20 Hz
- 20kHz
- 2kHz
MCQ 129: Sound travels fastest in
- gases
- liquids
- solids
- space
MCQ 130: A hand bell stimulates the
- movement of air particles
- collision of air particles
- vibration of air particles
- energy of air particles
Class 7 Science Mock Tests
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