SAT Physics Competitive Exam MCQs – Practice Test 5 (Chapter 1)

Energy Mass and Power MCQs with Answers PDF Download – Test 5

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Free Energy Mass and Power MCQs App Download: Ratio for the efficiency of a machine is; MCQ with answers: (useful energy output - energy input) × 100&percent;, (useful energy output + energy input) × 100&percent;, (useful energy input / energy output × 100&percent;, and (useful energy output / energy input) × 100&percent. Solve Objects Stability Quiz Questions, download Google e-Book (Free Chapter) to access online courses.

Energy Mass and Power MCQs – Practice Test 5 PDF Download

MCQ 21: The mechanical energy that a body have are of:

3 types
4 types
2 types
5 types

MCQ 22: The ratio for the efficiency of a machine is:

(useful energy output + energy input) × 100&percent;
(useful energy output - energy input) × 100&percent;
(useful energy input / energy output × 100&percent;
(useful energy output / energy input) × 100&percent;

MCQ 23: If P is the power, W is the work done, E is the energy converted and t is the time taken then, P is defined as:

P = W/t = E/t
P = t/W = t/E
P = W + t = E + t
P = W - t = E -t

MCQ 24: When the force is applied to the object but the object does not move, it means that:

no work is done
work is done
there is some friction
none of the above

MCQ 25: As the pendulum swings, some of its total energy is converted to thermal energy due to:

weight
mass
potential forces
frictional forces

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