Physics-Work Done by Forces
NEET Physics Work Done by Forces MCQ Question
Type: MCQ-conceptual-Easy-Class 11
Which of the following statements about work done by forces is correct?
A
Work done by a conservative force is always positive.
B
The work done by friction is always negative.
C
Work done is a scalar quantity that can be both positive and negative.
D
The work done by two interacting forces must always sum to zero.
Correct Answer
Option C
Detailed Explanation
Work done is a scalar quantity that can be positive or negative, depending on the nature of the forces involved, as mentioned in the context. While the work done by friction is negative, it is not accurate to say that all work done by conservative forces is positive, nor that the sum of work done by two forces must always cancel out.
Found an issue with this question?