Question

difine energy with si unit and dimension​

Answer 1

Energy :

The Ability to do work is called is called as "Energy".

There are two types of energy:

1. Kinetic energy.
2. Potential energy.

There are two forms of energy sources:

1. Renewable source of energy.
2. Non-renewable source of energy.

Examples of energy sources :

Renewable Resources :

1. Solar Energy .
2. Wind Energy.

Non - Renewable Resources :

1. Coal.
2. Petroleum .

SI Unit :

The SI unit of energy is Joules (J).

Kinetic Energy :

The energy in motion is known as Kinetic Energy.

For example

a moving ball, flowing water, etc.

Kinetic Energy=1 / 2 m × v ^2

Hhere,

m = Mass of the object

v = Velocity of the object

Potential Energy :

This is the energy stored in an object and is measured by the amount of work done.

For example:

a pen on a table, water in a lake, etc.

PotentialEnergy=m×g×h

Here,

m = Mass of the object (in kilograms)

g = Acceleration due to gravity

h = Height in meters

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