Physics
Grade-10
Easy
Question
The person will have maximum Potential Energy; when?
- He is sleeping on the ground.
- He is sitting on the ground.
- He is sleeping on the bed.
- He is standing on the roof.
Hint:
Gravitational potential energy refers to the energy stored in an object as a result of its vertical position or height of elevation.
The correct answer is: He is standing on the roof.
The person will have maximum Potential Energy; when he is standing on the roof.
- Maximum height of the person is obtained when standing on the roof indicates the maximum potential energy.
- Potential energy refers to the product of mass, acceleration due to gravity and height of the object.
- Mathematically, P.E = mgh where, m = mass of object, g = acceleration due to gravity, h = height
- So, the maximum potential energy will be obtained at maximum height.
With an increase in its height the potential energy increases.
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