Work Energy And Power Definition
The total energy of an athlete is a sum of kinetic potential and elastic energy.
Work energy and power definition. If you re seeing this message it means we re having trouble loading external resources on our website. Because energy is the capacity to do work we measure energy and work in the same units n m or joules. Energy is a key principle in physics as it allows work to be done. Learn what power means and how we use it to describe the rate of energy transfer.
Power is the rate at which work is done or energy is transmitted. You must have energy to accomplish work it is like the currency for performing work. Joules watt seconds or joule newton meter. Work is the result of a force acting over a certain distance.
In this article we will learn all about the concept of work power and energy. Work is done when a force is exerted on an object and the object moves from one place to another. Is the rate of doing work or the rate of using energy which are numerically the same. 45 w from the english workzpět.
Work done is the same as energy transferred. This distance is called the displacement of. Is the capacity for doing work. Work energy and power.
The rate at which energy is transferred is called power and the amount of energy that is usefully transferred is called efficiency. Work and energy can be considered as two sides of the same coin. Energy versus power comparison chart. Power p is the rate of energy generation or absorption over time p e t power s si unit of measurement is the watt representing the generation or absorption of energy at the rate of 1 joule sec.
Concepts of work kinetic energy and potential energy are discussed. Power s unit of measurement in the. Work done is generally referred in relation to the force applied while energy is used in reference to other factors such as heat. Energy is power integrated over time.
Power is the rate of transfer of energy or the rate of doing work. Energy is the capacity to do work. Work work has a specific definition in physics. Home high school ap physics notes work energy and power.
These concepts are combined with the work energy theorem to provide a convenient means of analyzing an object or system of objects moving between an initial and final state.