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Class 7 Science Exam MCQs – Practice Test 4 (Chapter 23)
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Study Sound waves Notes Questions and Answers PDF for science online education access. Download the Sound Waves Quiz Answers PDF e-Book, Ch. 23-4 to study Class 7 Science Course. Practice Ultrasound MCQ PDF, Sound Waves Quiz Questions and Answers for science online education access. Download the Sound Waves Notes App: Free Class 7 Science Learning App to ultrasound, musical instruments, speed of sound, sound waves and noise test prep for science competency learning systems.
Free Sound Waves Learning App Download: Three main types of musical instruments are; MCQ with answers: drum, guitar and piano, guitar, violin and piano, stringed instrument, wind instrument and percussion instrument, and stringed instrument, wind instrument and beat n bass instrument. Practice Ultrasound MCQ Questions, download Kobo e-Book (Free Chapter) to strengthen learning efficiency online.
MCQ 16: 'Ultrasound' is a reflection of:
MCQ 17: Three main types of musical instruments are:
MCQ 18: Sound loses more energy in:
MCQ 19: The note also depends on:
MCQ 20: The level of sound of normal conversation is:
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