SAT Physics MCQs – Practice Test 9 (Chapter 1)
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Learn Energy Mass and Power MCQs App Download with MCQ: "Energy output is always less than the energy input, because"; with answers: temperature changes, pollution in the air, and energy dissipated. Solve Measurement of Length Quiz Questions, download Google e-Book (Free Chapter) to enhance academic excellence.
MCQ 41: The energy output is always less than the energy input, because:
MCQ 42: Potential energy can be converted into:
MCQ 43: In stairs, each step has a height of 0.25 m and there are 8 steps altogether. If a boy runs up the flight of steps in 4 s and his weight is 390 N, what is his body's power?
MCQ 44: For 2 objects of the same mass moving at different speeds, the faster objects has:
MCQ 45: When a force moves an object, it does work and the object gains:
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