The unit of measurement for energy in the International System of Units (SI) is the joule. One joule is defined as the amount of energy transferred when a force of one newton is applied over a distance of one meter. In practical terms, joules are used to quantify various forms of energy, including kinetic energy, potential energy, and heat energy. Understanding energy measurements in joules is essential for various scientific fields, including physics, chemistry, and engineering, as it allows for standardized comparisons.