What is the unit of measurement for energy?

Energy is measured in Joules, which is the standard unit in the International System of Units (SI). A Joule represents the amount of work done when a force of one newton is applied over a distance of one meter. This unit is widely used in physics to quantify energy in various forms, such as kinetic energy, potential energy, thermal energy, and electrical energy.

Calories are another unit of energy, often used in the context of food and nutrition. While they do represent energy, they are not the SI unit, which makes Joules the preferred standard in scientific contexts.

Watts measure power, which is the rate of energy transfer over time, rather than energy itself. One watt is equivalent to one Joule per second.

Volts measure electric potential difference or electromotive force but do not quantify energy directly.

Thus, Joules is the most appropriate unit for measuring energy.