Potential energy of an object lying on ground is zero

True

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False

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Solution

The correct option is A True
Potential energy is the energy possessed by an object due to its position
Whenever an object is at height it possesses more potential energy and at ground possesses minimum or zero potential energy.
Earth surface being a common ground all over the world, it is natural choice for reference as zero height
We know that $p o t e n t i a l e n e r g y = m g h = 0 a s h = 0 a t g r o u n d .$
Hence the given statement is true.

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Similar questions

State whether the following objects posses kinetic energy, potential energy, or both :

(a) A man climbing a hill

(b) A flying aeroplan

(d) A ceiling fan in the off position

(e) A stretched spring lying on the ground.

Q. State whether the following objects possess kinetic energy, potential energy, or both :

(a) A man climbing a hill
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(c) A bird running on the ground
(d) A ceiling fan in the off position
(e) A stretched spring lying on the ground.

Write detailed answers?

a. Explain the difference between potential energy and kinetic energy.

b. Derive the formula for the kinetic energy of an object of mass m, moving with velocity v.

c. Prove that the kinetic energy of a freely falling object on reaching the ground is nothing but the transformation of its initial potential energy.

d. Determine the amount of work done when an object is displaced at an angle of 30^o with respect to the direction of the applied force.

e. If an object has 0 momentum, does it have kinetic energy? Explain your answer.

f. Why is the work done on an object moving with uniform circular motion zero?

We say that gravitational potential energy is zero when the object is on the ground(earth surface). My doubt is that can gravitational potential energy be considered zero anywhere (at any altitude) when object is kept on the surface of earth? And also there is distance between the object and the centre of the earth, how can the gravitational potential energy be considered zero?

Q. Assuming that the gravitational potential energy of an object at infinity is zero , the change in potential energy of an object of mass m

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