moment of force

简明释义

力矩

英英释义

例句

1.When you apply a moment of force 力矩 to a door handle, it makes the door easier to open.

当你对门把手施加一个力矩时，它会使门更容易打开。

2.The engineer calculated the moment of force 力矩 needed to lift the heavy beam with a crane.

工程师计算了用起重机提升重梁所需的力矩。

3.In sports, a gymnast uses their body weight to create a moment of force 力矩 during a routine.

在体育运动中，体操运动员利用自己的体重在例行动作中产生力矩。

4.The moment of force 力矩 applied by the wrench determines how easily you can loosen a bolt.

扳手施加的力矩决定了你松开螺栓的难易程度。

5.To balance the seesaw, you need to equalize the moment of force 力矩 on both sides.

为了平衡跷跷板，你需要使两侧的力矩相等。

作文

The concept of a moment of force is fundamental in the study of physics and engineering. It refers to the tendency of a force to cause an object to rotate about a specific point or axis. The moment of force is calculated by multiplying the magnitude of the force by the distance from the point of rotation to the line of action of the force. This distance is often referred to as the 'lever arm.' Understanding this principle is crucial for various applications, from designing simple machines to analyzing complex structures.In everyday life, we encounter the moment of force in numerous situations. For instance, when using a wrench to tighten a bolt, the force applied at the end of the wrench creates a moment of force around the bolt, allowing us to turn it with greater ease. The longer the wrench, the greater the distance from the bolt, which means that even a small amount of force can generate a large moment of force. This is why mechanics often use long-handled tools to maximize their effectiveness.Moreover, the moment of force plays a significant role in sports and physical activities. Athletes, for example, must understand how to apply forces effectively to enhance their performance. A gymnast performing a routine on the uneven bars needs to generate sufficient moment of force to execute flips and twists. By positioning their body correctly and applying force at the right angle, they can achieve impressive feats of strength and agility.In engineering, the moment of force is critical when designing structures such as bridges and buildings. Engineers must calculate the moment of force exerted by wind, gravity, and other loads to ensure that the structure can withstand these forces without collapsing. For example, when designing a bridge, engineers analyze the moment of force created by vehicles passing over it to determine the necessary materials and support systems required to maintain stability and safety.Furthermore, the moment of force is also essential in understanding rotational dynamics. In the field of mechanics, the principles governing the moment of force help explain how objects move in circular paths. For instance, when a car turns a corner, the tires exert a moment of force that allows the vehicle to navigate the curve. If the moment of force is insufficient due to high speeds or sharp turns, the car may skid or lose control.In conclusion, the moment of force is a vital concept that permeates various aspects of our lives, from simple tools to complex engineering designs. By grasping the importance of the moment of force, individuals can better appreciate the mechanics behind everyday tasks and the engineering marvels that shape our world. Whether in sports, construction, or daily activities, the moment of force remains a key player in the dynamics of motion and force application.

力矩的概念在物理和工程学的研究中是基本的。它指的是一种力使物体绕特定点或轴旋转的倾向。力矩是通过将力的大小与从旋转点到力的作用线之间的距离相乘来计算的。这段距离通常被称为“杠杆臂”。理解这个原理对于各种应用至关重要，从设计简单机械到分析复杂结构。在日常生活中，我们在许多情况下都会遇到力矩。例如，当使用扳手拧紧螺栓时，施加在扳手末端的力在螺栓周围产生了一个力矩，使我们能够更轻松地旋转它。扳手越长，从螺栓的距离就越大，这意味着即使是小的力也能产生大的力矩。这就是为什么机械师通常使用长柄工具以最大化其效果。此外，力矩在体育和身体活动中也扮演着重要角色。例如，运动员必须了解如何有效施加力量以提高他们的表现。一名体操运动员在不平衡的横杆上表演时，需要产生足够的力矩来执行翻转和扭转。通过正确定位他们的身体并在正确的角度施加力量，他们可以实现令人印象深刻的力量和敏捷性。在工程学中，力矩在设计桥梁和建筑物等结构时至关重要。工程师必须计算风、重力和其他载荷施加的力矩，以确保结构能够承受这些力量而不倒塌。例如，在设计一座桥时，工程师分析经过桥面的车辆产生的力矩，以确定维护稳定性和安全所需的材料和支撑系统。此外，力矩在理解旋转动力学方面也至关重要。在力学领域，支配力矩的原理有助于解释物体如何沿圆形路径移动。例如，当汽车转弯时，轮胎施加的力矩使车辆能够顺利转弯。如果由于高速或急转弯而力矩不足，汽车可能会打滑或失去控制。总之，力矩是一个重要的概念，渗透到我们生活的各个方面，从简单的工具到复杂的工程设计。通过掌握力矩的重要性，个人可以更好地理解日常任务背后的力学以及塑造我们世界的工程奇迹。无论是在体育、建筑还是日常活动中，力矩始终是运动和力量应用动态中的关键因素。