Potential energy is measured in which unit?

Potential energy is a form of energy that is stored in an object due to its position in a force field, commonly the gravitational field. The standard unit for measuring energy, including potential energy, is the joule. This unit is defined as the energy transferred when one newton of force is applied over a distance of one meter. Therefore, when discussing potential energy, the correct unit of measurement is joules.

The other units mentioned have different applications. Newton is a unit of force, measured in terms of mass and acceleration. Pascals measure pressure, defined as one newton per square meter, which relates to force distributed over an area rather than energy itself. Watts are a unit of power, representing the rate of energy transfer or conversion per unit time, rather than a measure of energy. Thus, the most appropriate choice for measuring potential energy is indeed joules.