Chapter 7 Work, Energy, and Simple Machines - Part 3

Which of the following is a non-conservative force that dissipates mechanical energy into heat?

Type: MCQ • Marks: 1
Which of the following is a non-conservative force that dissipates mechanical energy into heat?
Options
A. Electrostatic force
B. Friction / Air resistance
C. Gravity
D. Spring elastic force
Explanation
Friction is non-conservative, converting mechanical energy into thermal energy.
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Class 9th Science (MCQ)

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