central force

简明释义

中心力

英英释义

例句

1.In physics, a central force refers to a force that is directed towards a fixed point, such as gravity.

在物理学中，中心力指的是朝向一个固定点的力，例如重力。

2.When discussing orbital mechanics, it's essential to understand the role of central forces in satellite motion.

在讨论轨道力学时，理解中心力在卫星运动中的作用是至关重要的。

3.The motion of planets around the sun can be explained by the central force of gravitational attraction.

行星围绕太阳的运动可以用重力的中心力来解释。

4.In a pendulum, the tension in the string provides a central force that keeps the bob moving in a circular arc.

在摆中，绳子的张力提供了一个中心力，使得摆锤沿着圆弧运动。

5.The central force acting on an object in circular motion keeps it moving along a curved path.

作用于圆周运动物体的中心力使其沿着曲线路径运动。

作文

In the realm of physics, the concept of a central force plays a pivotal role in understanding the motion of celestial bodies. A central force is defined as a force that acts along the line connecting the center of an object to a point in space. This force is directed towards or away from a central point, which can be the center of mass of an object or a gravitational center. For instance, the gravitational pull that Earth exerts on the Moon is a classic example of a central force. This force not only keeps the Moon in orbit but also governs its motion through space.The significance of central forces extends beyond just celestial mechanics; it is also crucial in various fields of engineering and technology. In robotics, for example, understanding how forces act on a robot's limbs can help engineers design more efficient machines. By applying the principles of central force, engineers can create robotic arms that mimic human movements, allowing for greater precision in tasks such as surgery or assembly line work.Moreover, the study of central forces has led to advancements in our understanding of planetary motion. Kepler’s laws of planetary motion were formulated based on the idea of central forces. These laws describe how planets move in elliptical orbits around the Sun, with the Sun acting as the central force that governs their paths. This was a groundbreaking realization in the 17th century, as it shifted the perspective from a geocentric model of the universe to a heliocentric one.In addition to physical applications, the idea of central forces can also be metaphorically applied to social sciences. For example, in sociology, one might consider the central force of a community to be its shared values or beliefs. These elements draw individuals together, creating a cohesive group that can work towards common goals. Understanding what acts as a central force within a community can help leaders foster stronger relationships among members and promote collaboration.Furthermore, in psychology, the concept of a central force can be likened to intrinsic motivation. Just as a central force influences the motion of objects, intrinsic motivation drives individuals to pursue their passions and interests. Recognizing this central force can lead to better educational practices, where teachers encourage students to engage with material that resonates with them personally, thereby enhancing learning outcomes.In conclusion, the notion of a central force transcends its scientific origins, finding relevance in various disciplines. Whether it is the gravitational pull that keeps celestial bodies in orbit, the forces that drive technological innovations, or the underlying motivations that bind communities together, understanding central forces allows us to comprehend the dynamics of both the physical world and human interactions. As we continue to explore these concepts, we gain deeper insights into the fundamental principles that govern our existence, both in the cosmos and within our societies.

在物理学领域，中心力的概念在理解天体运动中起着关键作用。中心力被定义为沿着连接物体中心与空间中某一点的直线作用的力。这个力是指向或远离一个中心点，这个中心点可以是物体的质心或引力中心。例如，地球对月球的引力就是一个经典的中心力的例子。这个力量不仅使月球保持在轨道上，还支配着它在太空中的运动。中心力的重要性不仅限于天体力学；它在工程和技术的各个领域也至关重要。例如，在机器人技术中，理解力量如何作用于机器人的肢体可以帮助工程师设计更高效的机器。通过应用中心力的原理，工程师可以创建模仿人类动作的机器人手臂，从而在手术或装配线工作等任务中实现更高的精确度。此外，中心力的研究推动了我们对行星运动的理解。开普勒的行星运动定律就是基于中心力的概念而制定的。这些定律描述了行星如何围绕太阳以椭圆轨道运动，太阳作为中心力支配着它们的轨迹。这一发现是17世纪的重大突破，因为它将宇宙模型的视角从地心说转变为日心说。除了物理应用，中心力的概念在社会科学中也可以隐喻性地应用。例如，在社会学中，人们可能会考虑一个社区的中心力是其共同的价值观或信仰。这些元素将个人聚集在一起，形成一个有凝聚力的小组，可以朝着共同的目标努力。理解在一个社区中什么作为中心力可以帮助领导者促进成员之间更强的关系并促进合作。此外，在心理学中，中心力的概念可以比作内在动机。就像中心力影响物体的运动一样，内在动机驱动个人追求他们的激情和兴趣。认识到这一中心力可以导致更好的教育实践，教师鼓励学生参与与他们个人产生共鸣的材料，从而提高学习成果。总之，中心力的概念超越了其科学起源，在各个学科中找到相关性。无论是保持天体在轨道上的引力，驱动技术创新的力量，还是将社区团结在一起的潜在动机，理解中心力使我们能够理解物理世界和人际互动的动态。当我们继续探索这些概念时，我们获得了对支配我们存在的基本原则的更深刻见解，无论是在宇宙中还是在我们的社会中。