Class 7 Subjects

Grade 7 Science MCQs

Grade 7 Science MCQ PDF - Chapter

Sound Waves MCQ with Answers PDF p. 10

Learn Sound waves MCQ with answers, sound waves quiz questions with answers PDF to solve grade 7 science MCQ bank 10 for online classes. Ultrasound Multiple Choice Questions and Answers (MCQs), sound waves quiz questions and answers for online certifications. "Sound Waves" MCQs PDF: ultrasound, sound and vacuum, sound waves and echoes, all around sounds test prep for online elementary school.

"A strong beam of ultrasound can melt even a" Multiple Choice Questions (MCQ) on sound waves with choices metal, glass, soap, and wax for online certifications. Solve ultrasound quiz questions for school certificate programs for online school courses.

MCQs on Sound Waves

MCQ: A strong beam of ultrasound can melt even a


MCQ: Sound can travel through air because

air has pressure
air has humidity
air has particles
air has temperature

MCQ: Some fishing boats use echo to

calculate the depth of water
detect any predator
detect shoal of fish
eggs of fish

MCQ: Most of the sounds around world are

man made
made electronically

MCQ: X-rays are only reflected by

soft surfaces
thick surfaces
thin surfaces
hard surfaces