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Energy and power are closely related but are not the same physical quantity. Energy is the ability to cause change; power is the rate energy is moved, or used.
Energy is the capacity to do some physical activities or work, such as running, jumping, etc., while power is defined as the rate at which the energy is transferred, or the work is completed. The unit used to measure energy is joules, ergs and calories. Power is measured in watts.
- Power is defined as the rate at which specific work is done, or which the energy is transmitted.
- Energy is defined as the capacity to do some work. It is the power which is integrated over time.
- Potential energy and kinetic energy are the two main types of energy.
- Energy is used in moving a car, heating a home, lighting at night, flying an aeroplane, etc.
- The unit used to measure power is watt or joules per second.
May 6, 2024 · Last Updated : 06 May, 2024. Energy is the ability to do work, while power is the rate at which work is done. While energy is measured in joules, power is measured in watts. Energy exists in various forms, such as kinetic, potential, and thermal. Power determines how quickly work is done, impacting everyday devices.
Energy vs. Power. In physics, energy is defined as the amount of work that can be performed by force, whereas power is defined as the rate at which work is performed.
- joules = watt-seconds or joule = Newton-meter
The difference between energy and power is subtle. Energy is the amount of work done by force, power is the rate of energy transmission from one object to another.
May 10, 2018 · Power is like the strength of a weight lifter and Energy is the measure of how long he can sustain the output of power. While energy is ‘joules’, power is ‘joules per second’. Well, in another words Power is ‘watt’ and Energy is ‘watt-hour’.
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While energy is a measure of the total amount of work done or change caused, power indicates how quickly this work is being done or energy is being transferred. In simpler terms, energy is the capacity to do work, while power is the rate at which work is done.
