Class 7 Online Courses

Class 7 science Practice Tests

Class 7 Science Online Tests

All Around Sounds MCQ Quiz Online PDF Download

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Class 7 Science: All Around Sounds MCQs PDF Download

MCQ: Sounds of vehicles, aircrafts and machines are called

A) artificial sounds
B) natural sounds
C) noise
D) normal sounds

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: Like light, sound cannot

A) pass through transparent solids
B) pass through air
C) pass through liquids
D) pass through vacuum

MCQ: Vibrations are caused due to

A) change of temperature of air
B) change of pressure in air
C) effect of humidity on air
D) level of heat in air

MCQ: Sound is a form of

A) force
B) power
C) light
D) energy

Practice Tests: Class 7 Science Exam Prep

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