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Potential energy is the energy by virtue of an object's position relative to other objects. Potential energy is often associated with restoring forces such as a spring or the force of gravity. The action of stretching a spring or lifting a mass is performed by an external
位能 （英語： Potential Energy ），亦稱 勢能 ，是儲存於一 物理 系統內的一種 能量 ，是一個用來描述物體在保守力場中 作功 能力大小的 物理量 。 保守力 作 功 與路徑無關，故可定義一個僅與位置有關的 函數 ，使得保守力沿任意路徑所作的功，可表達為這兩點 函數值 的差，這個函數便是位能。 從物理意義上來說，位能表示物體在特定位置上所儲存的能量，描述 作功 能力的大小。 在適當的情況下，位能可以轉化為例如 動能 、 內能 等其他能量。 位能 [ 編輯] 位能的保守力定義 [ 編輯] 主條目： 保守力（重力 彈力 電力. 如果分別作用於兩個質點上的 作用力與反作用力 作功與具體路徑無關，只取決於交互作用質點初末位置，那麼這樣的一對力就叫作 保守力 。
勢能 （英語： Potential Energy ），亦稱 位能 ，是储存于一 物理 系统内的一种 能量 ，是一个用来描述物体在保守力场中 做功 能力大小的 物理量 。 保守力 作 功 与路径無關，故可定义一个仅与位置有关的 函数 ，使得保守力沿任意路径所做的功，可表达为这两点 函数值 的差，这个函数便是勢能。 從物理意义上来说，势能表示物體在特定位置上所储存的能量，描述 作功 能力的大小。 在适当的情况下，勢能可以轉化為例如 動能 、 内能 等其他能量。 势能的保守力定义. 如果分别作用于两个质点上的 作用力与反作用力 作功与具体路径无关，只取决于相互作用质点初末位置，那么这样的一对力就叫作 保守力 。 不满足这个条件的则称为 非保守力 。
Potential energy is energy that has the potential to become another form of energy. An object’s potential energy depends on its physical properties and position in a system. Potential energy comes in many forms, such as:
3 天前 · Potential energy, stored energy that depends upon the relative position of various parts of a system. For example, a steel ball has more potential energy raised above the ground than it has after falling to Earth. Learn more about potential energy in this article.
Potential energy is one of several types of energy that an object can possess. While there are several sub-types of potential energy, we will focus on gravitational potential energy. Gravitational potential energy is the energy stored in an object due to its location
Potential energy is measured relative to some comparison position or shape, and describes the potential for other forms of energy, commonly kinetic energy for motion, to exist. There are many forms of potential energy, including gravitational, elastic, magnetic, and electric.
Every conservative force gives rise to potential energy. Examples are elastic potential energy, gravitational potential energy, and electric potential energy. Gravitational potential energy near the earth can be expressed with respect to the height from the surface of 2
Highlights. Learning Objectives. By the end of this section, you will be able to: Relate the difference of potential energy to work done on a particle for a system without friction or air drag. Explain the meaning of the zero of the potential energy function for a system.
In this section, we introduce the concept of “potential energy”. Potential energy is a scalar function of position that can be defined for any conservative force in a way to make it easy to calculate the work done by that force over any path.
