Work-energy Theorem
Net work done on an object equals change in:
Select the correct option:
Solution
Kinetic energy
The Work-Energy Theorem states that the work done by the net force (sum of all forces) acting on an object is equal to the change in its kinetic energy: Wnet=ΔK=Kfinal−Kinitial
- Positive net work increases kinetic energy (speed up).
- Negative net work decreases kinetic energy (slow down).
- This theorem applies even for variable forces and curved paths.
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About This Question
- Subject
- physics
- Chapter
- work, energy and power
- Topic
- work-energy theorem
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Kinetic energy
The Work-Energy Theorem states that the work done by the net force (sum of all forces) acting on an object is equal to the change in its kinetic energy: Wnet=ΔK=Kfinal−Kinitial
- Positive net work increases kinetic energy (speed up).
- Negative net work decreases kinetic energy (slow down).
- This theorem applies even for variable forces and curved paths.
This easy difficulty physics question is from the chapter work, energy and power, covering the topic of work-energy theorem. It appeared in the 2025 exam.
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