Advertisements
Advertisements
प्रश्न
What is potential energy ? State its unit.
उत्तर
The energy of a body at rest is called the potential energy. It is defined as follows :
Potential energy of a body is the energy possessed by it due to its state of rest or position. Actually, it is the work spent in bringing the body to that state of rest or position.
It is written as P.E. or U.
The S.I. unit of potential energy is Joules.
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
In an electric fan, electrical energy changes into the mechanical energy.
Write true or false of the following statement.
Potential energy changes into kinetic energy when it is put to use
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Fill in the blank
The ability to do work is called ______
Tick the most appropriate answer.
The force applied on a machine to do work is called the
Define the term 'watt'.
How many joules are there in one kilowatt-hour?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
There is a car. Its tank is full of fuel but it does not move. Why is that?
Running water possesses ______.
Define energy?