Question

The amount of energy transferred when 10C of charge passes through a potential difference of 20 V is the same as the energy needed to raise a 2kg mass through a distance x. Find the value of x, take the value of g as 10 m/s2

Answer 1

Gravitational potential energy (GPE)

On Earth we always have the force of gravity acting on us. When we are above the Earth's surface we have potential (stored) energy. This is called gravitational potential energy (GPE).

The amount of GPE an object on Earth has depends on its:

mass

height above the ground

In the diagram:

all the books on a shelf have GPE

book A has more than book C because it is higher

book B has more than book A because it has a greater mass