An object has potential energy if it is in a state where it could do work if released. An object held above the ground has gravitational potential energy, which can be calculated as the mass of the object multiplied by the force of gravity (10 N/kg on Earth) multiplied by the height above the ground. For example, a 6 kg mass 4 m above the ground has gravitational potential energy, and a 45 kg girl jumping from a 0.4 m high stool loses gravitational potential energy equal to her mass multiplied by 10 N/kg multiplied by the height of 0.4 m.

2. Potential Energy

3. Potential Energy
If an object is in a state where it could do work if
released then we say that it has POTENTIAL
ENERGY
An object held above the ground has
GRAVITATIONAL potential energy (G.P.E)

4. GPE
Gravitational potential energy = mass (KG) x g x
height (m)
(g is the strength oif the
gravitational field = 10 N/kg on the
Earth).

5. 1. The potential energy of a 6 kg mass 4 m
above the ground is:
2. A 45 kg girl jumps from a 0.4 m high stool
onto the ground. How much potential energy
does she lose?