potential energy

简明释义

位能

英英释义

例句

1.A roller coaster at the top of a hill has maximum potential energy 势能 before it starts descending.

过山车在山顶时拥有最大的potential energy 势能，在它开始下坡之前。

2.Stretching a rubber band gives it potential energy 势能 that is released when it snaps back.

拉伸橡皮筋使其获得potential energy 势能，当它回弹时释放出来。

3.In physics, potential energy 势能 is often calculated using the formula PE = mgh.

在物理学中，potential energy 势能通常使用公式PE = mgh来计算。

4.When you lift a book off the table, you are increasing its potential energy 势能 due to its height.

当你把一本书从桌子上抬起时，你在增加它的potential energy 势能，因为它的高度。

5.The potential energy 势能 of water stored in a dam can be converted into electricity.

存储在水坝中的potential energy 势能可以转化为电能。

作文

Potential energy is a fundamental concept in physics that describes the energy stored in an object due to its position or state. For instance, when an object is elevated above the ground, it possesses gravitational potential energy (势能) because of the gravitational force acting on it. The higher the object is raised, the more potential energy (势能) it accumulates. This stored energy has the potential to be converted into kinetic energy (动能) when the object is allowed to fall. In everyday life, we encounter examples of potential energy (势能) frequently. Consider a roller coaster at the top of a hill; as it sits poised at the peak, it is filled with gravitational potential energy (势能). The moment it begins to descend, that potential energy (势能) transforms into kinetic energy (动能), propelling the coaster downwards at exhilarating speeds. This transformation illustrates the principle of conservation of energy, where total energy remains constant, merely changing forms.Another common example is a drawn bow. When the archer pulls back the string, the bow stores elastic potential energy (势能) due to the deformation of the bowstring and limbs. Once the string is released, this potential energy (势能) is converted into kinetic energy (动能), launching the arrow forward. This interplay between potential energy (势能) and kinetic energy (动能) is crucial not only in sports but also in various engineering applications, such as in the design of catapults and other projectile-launching devices.Moreover, potential energy (势能) is not limited to mechanical systems. In chemistry, molecules have potential energy (势能) based on their arrangement and the bonds between them. For example, in a chemical reaction, the breaking and forming of bonds involve changes in potential energy (势能). Reactants possess certain potential energy (势能) due to their molecular structure, and during the reaction, this energy is transformed, often resulting in the release or absorption of heat.Understanding potential energy (势能) is vital for students and professionals in science and engineering fields. It allows us to predict how systems behave under different conditions and helps in designing safe and efficient structures and machines. For instance, engineers must consider the potential energy (势能) of water stored in a dam before constructing it, ensuring that the structure can withstand the immense forces generated when the water is released.In conclusion, potential energy (势能) is an essential aspect of our understanding of physical systems, whether they are mechanical, chemical, or biological. By recognizing the various forms and transformations of potential energy (势能), we can better comprehend the natural world and apply this knowledge in practical ways, from designing roller coasters to creating sustainable energy solutions. The study of potential energy (势能) not only enriches our scientific literacy but also enhances our ability to innovate and solve real-world problems.

势能是物理学中的一个基本概念，描述了由于物体的位置或状态而储存的能量。例如，当一个物体被抬高到地面以上时，由于重力作用，它具有重力势能（势能）。物体抬得越高，积累的势能（势能）就越多。当物体允许下落时，这种储存的能量可以转化为动能（动能）。在日常生活中，我们经常遇到势能（势能）的例子。考虑一下过山车在山顶；当它停留在峰顶时，充满了重力势能（势能）。一旦开始下降，这种势能（势能）转化为动能（动能），使过山车以令人兴奋的速度向下冲去。这种转变说明了能量守恒的原理，即总能量保持不变，仅仅改变形式。另一个常见的例子是拉弓。当弓箭手拉回弦时，弓由于弓弦和弓身的变形储存了弹性势能（势能）。一旦释放弦，这种势能（势能）转化为动能（动能），将箭射出。这种势能（势能）和动能（动能）之间的相互作用在运动和各种工程应用中至关重要，例如在投石器和其他发射装置的设计中。此外，势能（势能）并不局限于机械系统。在化学中，分子根据其排列和相互之间的键也具有势能（势能）。例如，在化学反应中，键的断裂和形成涉及势能（势能）的变化。反应物由于其分子结构而具有某种势能（势能），在反应过程中，这种能量会转化，通常导致热量的释放或吸收。理解势能（势能）对于科学和工程领域的学生和专业人士至关重要。它使我们能够预测系统在不同条件下的行为，并有助于设计安全有效的结构和机器。例如，工程师在建造水坝之前必须考虑水库中的势能（势能），确保结构能够承受释放水时产生的巨大力量。总之，势能（势能）是我们理解物理系统的重要方面，无论它们是机械的、化学的还是生物的。通过认识势能（势能）的各种形式和转化，我们可以更好地理解自然世界，并以实际方式应用这些知识，从设计过山车到创造可持续能源解决方案。对势能（势能）的研究不仅丰富了我们的科学素养，还增强了我们创新和解决现实问题的能力。