O Level Physics e-Book's MCQs - Complete
Efficiency: O Level Physics Quiz App Download (Free) & e-Book - 546
Apps:
MCQ:
A machine uses total energy of 5000 J and within the process one-fourth of the energy is lost to the surroundings. The efficiency of the machine is
- 25%
- 50%
- 75%
- 90%
c
O Level Physics App & e-Book Tests PDF Download
States of Matter Test 557
Introduction to Forces Test 558
Pressure of Gases Test 559
Turning Effects of Forces Conclusion Test 560
Melting and Solidification Test 561
Temperature Scales Test 562
Types of Thermometers Test 563
Power in Physics Test 564
Introducing Waves Test 565
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O Level Physics MCQs eBook Download
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