Potential Energy (gravity)
Easyphysics
A 0.5 kg mass raised by 2 m near Earth's surface (g=10 m/s^2). Gain in potential energy is:
Select the correct option:
Solution
Incorrect! Answer:
10 J
The change in gravitational potential energy (ΔU) for an object of mass m moved vertically through a height h near Earth's surface is: ΔU=mgh Given:
- m=0.5 kg
- g=10 m/s2
- h=2 m ΔU=0.5×10×2=10 Joules.
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About This Question
- Subject
- physics
- Chapter
- work, energy and power
- Topic
- potential energy (gravity)
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
10 J
The change in gravitational potential energy (ΔU) for an object of mass m moved vertically through a height h near Earth's surface is: ΔU=mgh Given:
- m=0.5 kg
- g=10 m/s2
- h=2 m ΔU=0.5×10×2=10 Joules.
This easy difficulty physics question is from the chapter work, energy and power, covering the topic of potential energy (gravity). It appeared in the 2025 exam.
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