Learn physics efficiency MCQs, physics test for online learning courses and test prep to practice. Work and energy multiple choice questions (MCQ), physics efficiency quiz questions and answers for online what is physics courses distance learning.

Physics practice test MCQ: (required form of output/total input energy)×100 is equal to with options % power, % efficiency, % stress and % strain for online physics jobs preparation with most common interview questions and answers. Free physics revision notes to learn physics efficiency quiz with 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