Gravitational Potential Energy

When lifting a mass a certain __________ (a distance), we must overcome its __________ (a Force). Therefore the energy required to lift it (or the __________ in doing so) can be calculated as follows:

Energy Transfer	= Force × Distance
	= __________ × __________

The weight of an object is the dependant on both its __________ and the __________ field strength. It can be calculated as follows:

W = mg
where	W	=	Weight in Newtons, N
	m	=	Mass of the object in Kilograms, kg
	g	=	gravitational field strength (g ≈ 10N/kg close to Earth)

So the gravitational potential energy, E_G (the energy transferred to a raised mass) is:

E_G = mgh