What is energy? write different type of energy with examples.

In physics, energy is the quantitative property that must be transferred to a body or physical system to perform work on the body, or to heat it. Energy is a conserved quantity; the law of conservation of energy states that energy can be converted in form, but not created or destroyed.

Explanation:

..Mechanicalthe sum of macroscopic translational and rotational kinetic and potential energies

..Electricpotential energy due to or stored in electric fields

..Magneticpotential energy due to or stored in magnetic fields

..Gravitationalpotential energy due to or stored in gravitational fields

..Chemicalpotential energy due to chemical bonds

..Ionizationpotential energy that binds an electron to its atom or molecule

..Nuclearpotential energy that binds nucleons to form the atomic nucleus (and nuclear reactions)

..Chromodynamicpotential energy that binds quarks to form hadrons

..Elasticpotential energy due to the deformation of a material (or its container) exhibiting a restorative force as it returns to its original shape

..Mechanical wavekinetic and potential energy in an elastic material due to a propagated deformational wave

..Sound wavekinetic and potential energy in a fluid due to a sound propagated wave (a particular form of mechanical wave)

..Radiantpotential energy stored in the fields of propagated by electromagnetic radiation, including light

..Restpotential energy due to an object's rest mass

..Thermalkinetic energy of the microscopic motion of particles, a form of disordered equivalent of mechanical energy

r=rho l/a where a is the area, l is the length and rho is resistivity so the greater the area the lesser the resistance thats why the earth pin is thicker bcos current follow the shortest path, so less resistive .

newton's first law of motion