The SI unit for energy - any type of energy - is the joule. For food, another unit, the calorie, is still often used.
The unit that measures the amount of energy released by nutrients is the calorie.
The official (SI) unit for energy is the joule.
The unit in SI is joule; also used kcal (not in SI).
The 'w' in electricity commonly stands for watts, which is a unit of power that measures the rate at which energy is generated or consumed. It is used to quantify the amount of energy transferred per unit of time.
A unit of energy such as joules, kilowatt-hours, or calories cannot be used as a physical object for energy, as they are simply standardized measures used to quantify the amount of energy in a system or process.
A joule is a unit of energy. It measures the amount of work done when a force of one newton is applied over a distance of one meter. In simple terms, it quantifies the amount of energy transferred or used in various physical processes.
No. They're different. "Newton" is a unit of force. "Joule" is a unit of energy. A small force (1 newton) that pushes a basketball 10 miles can deliver more energy than a large force (a thousand newtons) that pushes it 1 foot.
Power measures the rate at which work is done or energy is transferred. It is the amount of energy transferred or converted per unit of time. In physics, power is typically measured in watts.
erg
calories.
Any energy unit you feel like using. In the US, the most commonly used is the dietary Calorie, which is actually a kilocalorie in the scientific sense. Outside the US, kilojoules are the usual units.
The unit used to measure kinetic energy is the joule (J).