Class 7 Science MCQs - Chapter 24

Sound Waves Multiple Choice Questions (MCQ Quiz) PDF Download - 1

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Class 7 Science: Sound Waves MCQs Questions PDF Download

MCQ: As compare to air, sound travels faster in

A) liquids

B) gases

C) vacuum

D) fluids

MCQ: Sounds of vehicles, aircrafts and machines are called

A) artificial sounds

B) natural sounds

C) noise

D) normal sounds

MCQ: Large empty room often sounds

A) full

B) hollow

C) noisy

D) repeating

MCQ: For communication astronauts use radio because

A) sound travels at very high speed in vacuum

B) sound does not travel in vacuum

C) vacuum repels sounds

D) sound energy turns into light in vacuum

MCQ: In concert halls, soft materials and carpets are used to

A) increase sound waves

B) absorb sound waves

C) retract sound waves

D) refract sound waves

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