# Energy Formula

Energy is something that gives the body the capacity to do the work. Energy has many forms like kinetic energy, potential energy, mechanical energy, nuclear energy, solar energy. It has many formulas, some of the popular ones are:

**1. Potential energy is given by,**

P.E = mgh.

Where, m is the mass, g is the gravitational force, h is the height.

**2. Kinetic energy is given by,**

K.E = $\frac{1}{2}$ mv

^{2}Where, m is the mass, v is the velocity.

**3. The mechanical energy formula is given by,**

M.E = F $\times$ D.

Where F is the force, D is the displacement.**4. Einstein's mass energy formula is given by,**

E = mc

Where m is the mass, c is the velocity of light.^{2}^{}^{}**5. The energy of a photon is given by,**

E = $\frac{hc}{\lambda}$.

Where, h = Planck's constant,

c = the speed of light,

$\lambda$ = the wavelength of light.