What is the SI unit used to measure energy?

Explanation

Energy is measured in joules, named after physicist James Prescott Joule, who studied the relationship between heat and mechanical work. One joule represents a relatively small amount of energy, which is why larger everyday quantities, like the energy content of food, are often expressed in kilojoules or kilocalories. Power, by contrast, measures how quickly energy is used and is expressed in watts. Explore more Everyday Science MCQs on mcqstutor to keep practicing.