Class 9 physics Practice Tests
Class 9 Physics Online Tests
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The MCQ: (a required form of output/total input energy)×100 is equal to; "Physics: Efficiency" App Download (Free) with answers % power, % efficiency, % stress and % strain to study e-learning courses. Solve work and energy quiz questions, download Google eBook (Free Sample) for online certificate courses.
MCQ 1: (a required form of output/total input energy)×100 is equal to
MCQ 2: An body builder does 15 Joules of useful work from every 60 Joules of food energy which he takes. His efficiency will be
MCQ 3: If some energy given to a system, then energy in the required form obtained is always
MCQ 4: A system which gives an output equal to the total energy used by it is called
MCQ 5: The ratio of required form of energy obtained from a system as output to the total energy given to it as input is called its
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