Question 11
Question 11 of 40

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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct

Topics Tested

Define power as work done per unit time and also as energy transferred per unit time; recall and use the equations (a) P = W/t (b) P = ΔE/t

Know what happens to an object if the rate at which it receives energy is less or more than the rate at which it transfers energy away from the object

Determine, qualitatively, from given data or the shape of a distance–time graph or speed–time graph when an object is: (a) at rest (b) moving with constant speed (c) accelerating (d) decelerating