What is the P.E. of a Body Lying on the Surface of the Earth?

What is the P.E. of a body lying on the surface of the earth?

One Line Answer

P.E of a body lying on a floor is zero.

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Chapter 1: Force, Work, Energy and Power - 1.5 Graded Assignment [Page 56]

Chapter 1 Force, Work, Energy and Power
1.5 Graded Assignment | Q 25. | Page 56

State the energy transformation on the following:

Electricity is obtained from solar energy.

Complete the following sentences:

Kilowatt is the unit of ....... and kWh is the unit of

A machine raises a load of 750 N through a height of 16 m in 5s. calculate:
(i) work done by machine,
(ii) power at which the machine works.

A cricket ball is thrown up from the earth's surface. What happens to its P.E.
(a) during the motion
(b) at the highest point?

Give an example

Electrical energy changes to heat energy.

In the following case write yes, if the work is being done and no if no work is being done.

A coolie standing with a heavy load on his head

Is power a scalar or a vector quantity?

What do you understand by the term energy? Is energy a scalar or vector? How is the energy possessed by a body measured?