NEET Physics Work Done by Forces Match the Following Question
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Work done is positive | (i) Force acts opposite to displacement |
| (b) Work done is negative | (ii) Force acts in the direction of displacement |
| (c) Work done is zero | (iii) No displacement occurs |
| (d) Work is a scalar quantity | (iv) Can be both positive and negative |
a-ii, b-i, c-iii, d-iv
a-i, b-ii, c-iv, d-iii
a-ii, b-iv, c-iii, d-i
a-ii, b-i, c-iv, d-iii
Correct Answer
Detailed Explanation
Work done is considered positive when the force acts in the same direction as the displacement, negative when it acts opposite to it, and zero when there is no displacement. Work is indeed a scalar quantity and can take values that are both positive and negative as per the definitions provided in the NCERT context.
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