total energy

简明释义

总能

英英释义

例句

1.The formula for calculating the total energy of a system is crucial in physics.

计算一个系统的总能量的公式在物理学中至关重要。

2.The total energy of an object is the sum of its kinetic and potential energy.

一个物体的总能量是其动能和势能的总和。

3.In a closed system, the total energy remains constant over time.

在一个封闭系统中，总能量随时间保持不变。

4.Engineers must consider the total energy when designing efficient machines.

工程师在设计高效机器时必须考虑总能量。

5.To calculate the total energy used in a household, you need to track all appliances.

要计算家庭中使用的总能量，你需要跟踪所有电器的使用情况。

作文

The concept of total energy is fundamental in various fields of science, particularly in physics and engineering. It refers to the sum of all forms of energy present in a system. Understanding total energy is crucial for analyzing mechanical systems, thermodynamic processes, and even in everyday applications such as transportation and electricity generation.To illustrate this concept, consider a simple pendulum. The pendulum has two primary forms of energy: kinetic energy and potential energy. When the pendulum swings to its highest point, it possesses maximum potential energy and minimal kinetic energy. Conversely, at the lowest point of its swing, the pendulum has maximum kinetic energy and minimal potential energy. Regardless of its position, the total energy of the pendulum remains constant, assuming no external forces like air resistance are acting on it. This principle is known as the conservation of energy.In a more complex system, such as a car moving along a road, the total energy includes not only the kinetic energy of the car due to its motion but also the potential energy related to its height above the ground. Additionally, the energy from fuel combustion contributes to the total energy as it powers the engine. Engineers must consider all these energy forms when designing efficient vehicles that minimize energy loss.The importance of total energy extends beyond mechanics. In thermodynamics, the total energy of a system includes internal energy, which accounts for the microscopic motion of particles, as well as any work done by or on the system and heat exchanged with the surroundings. For example, when heating water in a kettle, the total energy increases as thermal energy is added, leading to an increase in the water's temperature and eventually causing it to boil.Moreover, in the context of renewable energy, understanding total energy is vital for evaluating the efficiency of energy systems. For instance, solar panels convert sunlight into electrical energy, contributing to the total energy available for use. By measuring the total energy output of solar panels over time, we can assess their effectiveness and make informed decisions about energy production and consumption.In conclusion, the term total energy encompasses a wide range of energy forms and plays a significant role in various scientific disciplines. Whether analyzing a simple pendulum or designing a complex energy system, comprehending the concept of total energy allows us to understand how energy is conserved, transformed, and utilized in our world. As we face challenges related to energy consumption and sustainability, a thorough grasp of total energy will be essential for developing innovative solutions that promote efficiency and reduce environmental impact.

“总能量”这一概念在科学的多个领域中都是基础，尤其是在物理学和工程学中。它指的是系统中所有能量形式的总和。理解“总能量”对于分析机械系统、热力学过程，甚至在交通运输和电力生成等日常应用中都至关重要。为了说明这个概念，我们可以考虑一个简单的摆。摆有两种主要的能量形式：动能和势能。当摆摆动到最高点时，它具有最大的势能和最小的动能。相反，在摆动的最低点，摆具有最大的动能和最小的势能。无论其位置如何，摆的“总能量”保持不变，假设没有空气阻力等外部力量作用于它。这一原则被称为能量守恒。在更复杂的系统中，例如沿着道路行驶的汽车，“总能量”不仅包括由于运动而产生的动能，还包括与其高度相关的势能。此外，燃料燃烧产生的能量也贡献了“总能量”，因为它为发动机提供动力。工程师在设计高效的车辆时，必须考虑所有这些能量形式，以最大限度地减少能量损失。“总能量”的重要性不仅限于力学。在热力学中，系统的“总能量”包括内部能量，这涉及到粒子的微观运动，以及系统所做的任何功和与周围环境交换的热量。例如，当在水壶中加热水时，随着热能的加入，“总能量”增加，导致水温升高，最终使其沸腾。此外，在可再生能源的背景下，理解“总能量”对于评估能源系统的效率至关重要。例如，太阳能电池板将阳光转化为电能，为使用提供“总能量”。通过测量太阳能电池板随时间的“总能量”输出，我们可以评估其有效性，并就能源生产和消费做出明智的决策。总之，术语“总能量”涵盖了广泛的能量形式，并在各种科学学科中发挥着重要作用。无论是分析简单的摆还是设计复杂的能源系统，理解“总能量”这一概念使我们能够理解能量是如何在我们的世界中被保护、转化和利用的。随着我们面临与能源消费和可持续性相关的挑战，深入掌握“总能量”将对开发促进效率和减少环境影响的创新解决方案至关重要。