Exam-style question
Try this first
Which of the following is an example of energy dissipation in a mechanical system?.
- A.A car accelerating on a flat road.
- B.A pendulum swinging back and forth.
- C.Friction between a sliding block and a surface.
- D.A spring compressing and releasing.
Model answer
What a good answer should say
- Friction between a sliding block and a surface..
- the correct option
Explanation
Why this works
The correct answer is Friction between a sliding block and a surface.. This supports Explain energy dissipation in real mechanical systems.
in Conservation of energy because it uses the required mechanics relationship directly. The other options are less suitable because they confuse a different force, motion, energy, momentum, or materials concept.
Common mistake
No common mistake is linked to this question yet.