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Closed Systems : Class 9 Science MCQ Practice Questions & Answers (English) - ObjectiveMcq

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PracticeClass 9 SciencePhysicsConservation Of EnergyClosed Systems

Closed Systems in Class 9 Science : Practice MCQ Questions & Answers with Explanations

1 practice sets · Page 1 of 1

Class 9 ScienceMediumPhysics Conservation Of EnergyClosed Systems

1.

What happens to the total energy in a closed system?

A

It decreases

B

It remains constant

C

It increases

D

It becomes zero

Correct Answer:

B — It remains constant

Explanation:

Total energy remains constant in a closed system according to the law of conservation of energy.