Learn efficiency o level physics MCQs, online O level physics test for e-learning degrees, online courses prep. Practice energy, work and power multiple choice questions (MCQs), efficiency o level physics quiz questions and answers. Career test on energy and units, work and energy, efficiency: o level physics tutorials for online physics 1 courses distance learning.

Study bachelors and masters degree courses, online physics degree programs MCQs: output of a truck is 4500 j and its efficiency is 50%, input energy provided to truck is with options 5000 j, 900 j, 9000 j and 500 j with online study guide to prepare for employment tests and pre-employment screening test. Free skills assessment test is for online learn efficiency o level physics quiz questions with MCQs, exam preparation questions and answers. Efficiency: O Level Physics Video

MCQ: Output of a truck is 4500 J and its efficiency is 50%, input energy provided to 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 energy input gets wasted in form of thermal energy, 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 output is 750 J. efficiency of 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