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Practice Efficiency O Level Physics Multiple Choice Questions (MCQ), efficiency o level physics quiz answers PDF worksheet, O level physics test for online entrance exam. Solve energy, work and power Multiple Choice Questions and Answers (MCQs), "Efficiency O Level Physics" quiz questions and answers for online college courses. Learn energy and units, power in physics test prep for best online ACT prep class.

"Output of a truck is 4500 J and its efficiency is 50%, the input energy provided to the truck is" Multiple Choice Questions (MCQ) on efficiency: o level physics with choices 5000 j, 900 j, 9000 j, and 500 j for online college courses. Solve efficiency o level physics quiz questions for merit scholarship test and certificate programs for online colleges that offer certificate programs. Efficiency: O Level Physics Video

MCQ: Output of a truck is 4500 J and its efficiency is 50%, the input energy provided to the truck is

1. 5000 J
2. 900 J
3. 9000 J
4. 500 J

C

MCQ: In a typical power station, amid a series of energy transfers and conversions, about 70% of the energy input gets wasted in the form of thermal energy, the efficiency of such a power station is about

1. 0.3
2. 0.4
3. 0.7
4. 1

A

MCQ: A car uses total energy of 2500 J and the output is 750 J. The efficiency of the car is

1. 50%
2. 30%
3. 25%
4. 80%

B

MCQ: Formula for efficiency is

1. (energy input / energy output) × 100
2. (energy input / energy output) × 100
3. (useful energy input / energy output) × 100
4. (useful energy output / total energy input) × 100

D

MCQ: Efficiency of a machine is measured by

1. (Wasted Energy Output ⁄ Energy Input) × 100 %
2. (Energy Input ⁄ Wasted Energy Output) × 100 %
3. (Useful Energy Output ⁄ Energy Input) × 100 %
4. (Energy Input ⁄ Useful Energy Output) × 100 %

C