static friction

简明释义

静摩擦

英英释义

例句

1.The static friction 静摩擦 between the rubber sole and the floor helps prevent slipping.

橡胶鞋底与地板之间的 静摩擦 static friction 有助于防止打滑。

2.In sports, athletes rely on static friction 静摩擦 to maintain their footing during quick movements.

在运动中，运动员依靠 静摩擦 static friction 在快速移动中保持立足点。

3.If the incline is steep enough, the static friction 静摩擦 will be overcome, causing the object to slide down.

如果坡度足够陡，静摩擦 static friction 将被克服，导致物体滑下。

4.The car's tires grip the road due to static friction 静摩擦, allowing it to start moving without slipping.

汽车的轮胎因 静摩擦 static friction 紧握路面，使其能够在不打滑的情况下启动。

5.When you push a heavy box, the force of static friction 静摩擦 prevents it from moving until you apply enough force.

当你推一个重箱子时，静摩擦 static friction 的力量阻止它移动，直到你施加足够的力量。

作文

The concept of static friction plays a crucial role in our daily lives, although we may not always be aware of it. Static friction is the force that prevents two surfaces from sliding past each other when they are at rest. It is the reason why we can walk without slipping, why objects remain stationary on inclined surfaces, and why cars can start moving without skidding. Understanding static friction requires an exploration of its definition, applications, and the factors that influence it.To begin with, static friction can be defined as the force that must be overcome to initiate the movement of an object at rest. This force acts parallel to the surfaces in contact and opposes the applied force that attempts to move the object. The maximum value of static friction is determined by the nature of the surfaces in contact and the normal force pressing them together. The formula for calculating the maximum static friction is given by:F_s ≤ μ_s * Nwhere F_s is the static frictional force, μ_s is the coefficient of static friction, and N is the normal force. The coefficient of static friction varies depending on the materials involved; for example, rubber on concrete has a high coefficient, while ice on metal has a low one.In practical terms, static friction allows us to perform everyday activities with ease. When we walk, our shoes push against the ground, and it is the static friction between the soles of our shoes and the pavement that prevents us from slipping. If this friction were absent, walking would become nearly impossible, and we would constantly fall. Similarly, when driving a car, static friction is what allows the tires to grip the road, enabling acceleration, deceleration, and turning without losing control.The importance of static friction extends beyond just walking and driving. In construction, engineers must consider static friction when designing structures. For instance, if a building is constructed on a slope, the static friction between the foundation and the ground must be sufficient to prevent the building from sliding down. If the static friction is too low, additional measures such as anchoring or increasing the weight of the structure may be necessary to ensure stability.Moreover, static friction also plays a significant role in the field of sports. Athletes rely on static friction for optimal performance. Sprinters need adequate friction between their shoes and the track to gain speed effectively. Similarly, gymnasts depend on static friction when performing routines on different apparatuses. A good understanding of static friction can help athletes choose the right footwear and equipment to enhance their performance.However, it is essential to recognize that static friction has its limits. Once the applied force exceeds the maximum static friction, the object will begin to move, transitioning into kinetic friction. This transition can sometimes lead to slips and falls, which is why it is crucial to maintain awareness of the surfaces we interact with, especially in hazardous conditions like wet or icy environments.In conclusion, static friction is an essential force that allows us to navigate our world safely and effectively. From walking to driving and even in sports and engineering, understanding static friction helps us appreciate the balance between motion and stillness. By recognizing the factors that influence static friction, we can make informed decisions that enhance our safety and performance in various activities. Thus, the study of static friction is not merely an academic exercise but a vital aspect of our everyday experiences.

“静摩擦”这一概念在我们的日常生活中发挥着至关重要的作用，尽管我们可能并不总是意识到它。“静摩擦”是指当两个表面静止时，防止它们相互滑动的力。正是由于“静摩擦”，我们才能在不滑倒的情况下行走，物体才能在倾斜的表面上保持静止，以及汽车能够在不打滑的情况下启动。理解“静摩擦”需要探索其定义、应用以及影响因素。首先，“静摩擦”可以定义为克服物体运动所需的力。该力沿接触表面平行方向作用，并抵抗试图移动物体的施加力。最大“静摩擦”的值由接触表面的性质和施加在它们之间的法向力决定。计算最大“静摩擦”的公式为：F_s ≤ μ_s * N其中F_s为静摩擦力，μ_s为静摩擦系数，N为法向力。静摩擦系数因所涉及材料的不同而异；例如，橡胶与混凝土之间的系数较高，而冰与金属之间的系数较低。在实际应用中，“静摩擦”使我们能够轻松地进行日常活动。当我们行走时，鞋子与地面之间的推力，正是“静摩擦”阻止我们滑倒。如果没有这种摩擦，行走几乎是不可能的，我们会不断摔倒。同样，在驾驶汽车时，“静摩擦”使轮胎能够抓住路面，从而在不失控的情况下加速、减速和转弯。“静摩擦”的重要性不仅限于行走和驾驶。在建筑领域，工程师在设计结构时必须考虑“静摩擦”。例如，如果一栋建筑建在坡道上，基础与地面之间的“静摩擦”必须足够，以防止建筑物滑下。如果“静摩擦”过低，可能需要采取额外措施，如锚固或增加结构的重量，以确保稳定。此外，“静摩擦”在体育领域也起着重要作用。运动员依赖“静摩擦”来获得最佳表现。短跑运动员需要在跑道上有足够的摩擦力，以有效地加速。同样，体操运动员在不同器械上表演时也依赖“静摩擦”。对“静摩擦”的良好理解能帮助运动员选择合适的鞋子和设备，以提高他们的表现。然而，必须认识到“静摩擦”是有其极限的。一旦施加的力超过最大“静摩擦”，物体就会开始移动，进入动摩擦。这种转变有时会导致滑倒和摔倒，因此，保持对我们所接触表面的关注是至关重要的，尤其是在潮湿或结冰的环境中。总之，“静摩擦”是一个基本力，使我们能够安全有效地导航我们的世界。从行走到驾驶，甚至在体育和工程中，理解“静摩擦”帮助我们欣赏运动与静止之间的平衡。通过认识影响“静摩擦”的因素，我们可以做出明智的决策，提高在各种活动中的安全性和表现。因此，研究“静摩擦”不仅仅是学术上的练习，而是我们日常体验中的一个重要方面。