Physics: Efficiency MCQs Quiz Online PDF Download

Physics efficiency Multiple Choice Questions (MCQ), physics efficiency quiz answers PDF to practice grade 9 physics test for online school programs. Learn work and energy Multiple Choice Questions and Answers (MCQs), "Physics Efficiency" quiz questions and answers for online school courses. Learn physics learning, physics: sources of energy, physics: work, forms of energy, physics: efficiency test prep for online secondary school classes.

"(a required form of output/total input energy)×100 is equal to" Multiple Choice Questions (MCQ) on physics for class 10 with choices % power, % efficiency, % stress, and % strain for online school courses. Free physics student portal for online learning work and energy quiz questions for online certificate courses.

MCQs on Physics Efficiency PDF Download

MCQ: (a 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 the 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 the total energy used by it is called

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

C

MCQ: 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

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

A