Which unit is used to measure energy?

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Multiple Choice

Which unit is used to measure energy?

Explanation:
Energy is measured in the joule in the SI system. A joule represents the amount of work done when a force of one newton moves an object one meter in the direction of the force, so energy and work are directly tied to force and distance. Put simply, 1 joule = 1 newton × 1 meter. For example, lifting a one-newton weight by one meter requires about one joule of energy. Other units serve different physical quantities: pascal is pressure (force per area), newton is force, and watt is power (the rate of energy transfer, or joules per second). Since energy is about the total amount of work done or energy transferred, the joule is the appropriate unit.

Energy is measured in the joule in the SI system. A joule represents the amount of work done when a force of one newton moves an object one meter in the direction of the force, so energy and work are directly tied to force and distance. Put simply, 1 joule = 1 newton × 1 meter. For example, lifting a one-newton weight by one meter requires about one joule of energy. Other units serve different physical quantities: pascal is pressure (force per area), newton is force, and watt is power (the rate of energy transfer, or joules per second). Since energy is about the total amount of work done or energy transferred, the joule is the appropriate unit.

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