moment of force

简明释义

力矩

英英释义

例句

1.The moment of force applied at the pivot point determines how easily the door swings open.

施加在支点上的力矩决定了门打开的难易程度。

2.When tightening a bolt, you must apply the right moment of force to ensure it is secure without stripping the threads.

在拧紧螺栓时，必须施加正确的力矩以确保其牢固而不会损坏螺纹。

3.In physics, the moment of force is crucial for understanding rotational dynamics.

在物理学中，力矩对于理解旋转动力学至关重要。

4.The engineer calculated the moment of force needed to lift the heavy beam safely.

工程师计算了安全提升重梁所需的力矩。

5.A longer lever arm increases the moment of force, making it easier to lift objects.

较长的杠杆臂增加了力矩，使得抬起物体更容易。

作文

The concept of a moment of force is fundamental in understanding how forces interact with objects in our physical world. In physics, the moment of force refers to the rotational effect produced by a force applied at a distance from a pivot point or axis. This idea is crucial in various fields, including engineering, mechanics, and even everyday activities such as opening a door or using a wrench. To grasp the significance of the moment of force, consider the example of opening a door. When you push on the door handle, you apply a force. However, the effectiveness of that force in moving the door depends on two factors: the magnitude of the force and the distance from the pivot point, which is the hinges of the door. The further away you are from the hinges when you apply your force, the greater the moment of force you create. This principle explains why it is easier to open a door by pushing near the edge rather than close to the hinges. Mathematically, the moment of force can be expressed as the product of the force applied and the distance from the pivot point. The formula is given by: Moment of Force (τ) = Force (F) × Distance (d) Where τ is the moment of force, F is the force applied, and d is the perpendicular distance from the line of action of the force to the pivot point. This equation highlights the importance of both the amount of force and the distance in determining the effectiveness of the force in producing rotation. In engineering applications, understanding the moment of force is essential for designing structures and mechanisms that can withstand various loads and forces. For instance, when designing a bridge, engineers must consider the moments created by the weight of vehicles and pedestrians. They analyze how these moments affect the stability and safety of the structure. If the moments are not properly accounted for, the bridge could fail under stress, leading to catastrophic consequences. Moreover, the moment of force also plays a critical role in machinery. For example, in a lever system, the placement of the fulcrum determines how much force is needed to lift a load. By strategically positioning the fulcrum, one can maximize the moment of force and minimize the effort required. This principle is utilized in various tools and devices, from simple seesaws to complex cranes. In conclusion, the moment of force is a vital concept that underpins many aspects of our physical interactions and technological advancements. Understanding this principle allows us to manipulate forces effectively, whether we are opening a door, designing a bridge, or operating machinery. As we continue to explore the realms of physics and engineering, the moment of force will remain a key element in our quest to understand and harness the power of forces in our world. The Chinese translation of moment of force is "力矩", which encapsulates the same idea of rotational force and its significance in both theoretical and practical applications.

力矩的概念在理解力量如何与我们物理世界中的物体相互作用时是基础性的。在物理学中，力矩指的是在距离支点或轴心施加的力量所产生的旋转效果。这个想法在工程、机械和甚至日常活动（如开门或使用扳手）等多个领域都是至关重要的。为了理解力矩的重要性，可以考虑开门的例子。当你推门把手时，你施加了一个力量。然而，这个力量在移动门的有效性取决于两个因素：力量的大小和离支点的距离，即门的铰链。你施加力量时离铰链越远，你创造的力矩就越大。这一原则解释了为什么靠近门边缘推门比靠近铰链更容易。在数学上，力矩可以表示为施加的力量与离支点的距离的乘积。公式为：力矩(τ) = 力(F) × 距离(d)其中τ是力矩，F是施加的力量，d是力量作用线到支点的垂直距离。这个方程突显了力量的数量和距离在决定力量产生旋转的有效性方面的重要性。在工程应用中，理解力矩对于设计能够承受各种载荷和力量的结构和机制至关重要。例如，在设计桥梁时，工程师必须考虑车辆和行人重量所造成的力矩。他们分析这些力矩如何影响结构的稳定性和安全性。如果没有妥善考虑这些力矩，桥梁可能会在压力下失败，导致灾难性后果。此外，力矩在机械中也起着关键作用。例如，在杠杆系统中，支点的位置决定了提升负载所需的力量。通过战略性地放置支点，可以最大化力矩并最小化所需的努力。这个原则被应用于各种工具和设备，从简单的跷跷板到复杂的起重机。总之，力矩是一个重要的概念，它支撑着我们物理互动和技术进步的许多方面。理解这一原则使我们能够有效地操纵力量，无论是在开门、设计桥梁还是操作机械。随着我们继续探索物理和工程的领域，力矩将仍然是我们理解和利用我们世界中力量的关键元素。力矩的中文翻译是“力矩”，它包含了旋转力及其在理论和实际应用中的重要性。