Question Detail

PHY 101 Work, Energy and Power Objective Question
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Question

What is a defining characteristic of a conservative force?
Options
A The work it does depends on the path taken.
B The work it does is zero for any closed path returning to the starting point.
Correct Answer
C It always dissipates energy as heat.
D Potential energy cannot be defined for it.
Correct Answer

Option B is the correct answer.

Detailed Explanation

A force is conservative if the total work done on a particle is zero when the particle moves around any closed path and returns to its initial position. This also means the work is independent of the path, depending only on the initial and final positions.

Hint

Gravity and spring forces are examples.

Question Info

Course: PHY 101
Topic: Work, Energy and Power
Type: Objective
Difficulty: Not specified
Question 399 of 1250
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