Physics efficiency MCQs, physics efficiency quiz answers to learn secondary school physics courses online. Work and energy multiple choice questions (MCQs), physics efficiency quiz questions and answers for online secondary education degree. Potential energy, physics learning, physics: sources of energy, physics: work, forms of energy, physics: efficiency test prep for secondary school teaching certification.

Learn physics MCQs: (required form of output/total input energy)×100 is equal to, with choices % power, % efficiency, % stress, and % strain for online secondary education degree. Free physics student portal for online learning physics efficiency quiz questions, MCQs to find questions answers based online learning tests.

MCQ: (required form of output/total input energy)×100 is equal to

1. % power
2. % efficiency
3. % stress
4. % strain

B

MCQ: An body builder does 15 Joules of useful work from every 60 Joules of food energy which he takes. His efficiency will be

1. 0.15
2. 0.25
3. 0.3
4. 0.35

B

MCQ: If some energy given to a system, then energy in required form obtained is always

1. less than the given energy
2. equal to the given energy
3. greater than the given energy
4. none of above

A

MCQ: A system which gives an output equal to total energy used by it is called

1. negative system
2. non-ideal system
3. ideal system
4. slow system

C

MCQ: Ratio of required form of energy obtained from a system as output to total energy given to it as input is called its

1. efficiency
2. power
3. stress
4. strain

A