frictional force

简明释义

摩擦力

英英释义

例句

1.The frictional force between the tires and the road is crucial for safe driving.

轮胎与路面之间的摩擦力对安全驾驶至关重要。

2.The car skidded on the wet road because the frictional force was not strong enough.

汽车在湿滑的路面上打滑，因为摩擦力不足。

3.To stop the bicycle, you need to increase the frictional force by applying the brakes.

要停下自行车，你需要通过刹车来增加摩擦力。

4.The frictional force helps us walk without slipping.

摩擦力帮助我们走路时不滑倒。

5.When you push a heavy box, the frictional force between the box and the floor resists your effort.

当你推一个重箱子时，箱子和地面之间的摩擦力会抵抗你的努力。

作文

Friction is a force that opposes the relative motion of two surfaces in contact. The concept of frictional force (摩擦力) is crucial in understanding how objects interact with each other in our everyday lives. Whether we are walking, driving, or simply placing an item on a table, frictional force plays a significant role in these activities. In this essay, I will explore the nature of frictional force, its types, and its applications in various fields.Firstly, it is important to understand what frictional force is. It arises when two surfaces come into contact and attempt to slide past each other. This force can be classified into two main types: static frictional force (静摩擦力) and kinetic frictional force (动摩擦力). Static frictional force is the force that must be overcome to start moving an object at rest, while kinetic frictional force is the force acting on an object that is already in motion. The amount of frictional force depends on several factors, including the nature of the surfaces in contact and the normal force pressing them together.One of the most common examples of frictional force in action is when we walk. As our foot makes contact with the ground, the static frictional force between our shoe and the surface allows us to push off and move forward. Without sufficient frictional force, we would slip and fall. This demonstrates how vital frictional force is for our daily activities and safety.In addition to walking, frictional force is also essential in the automotive industry. Cars rely on the frictional force between their tires and the road to accelerate, decelerate, and maneuver. Engineers must carefully consider the materials used for tires and road surfaces to optimize frictional force for better performance and safety. For instance, wet or icy conditions can drastically reduce frictional force, leading to dangerous driving situations. Therefore, understanding and managing frictional force is crucial for vehicle design and road safety measures.Moreover, frictional force is not only limited to mechanical systems but also plays a role in various scientific and engineering applications. In manufacturing, for example, the frictional force between different components can affect the efficiency of machines and tools. Engineers often seek to minimize unwanted frictional force in order to reduce wear and tear on equipment, which can lead to increased costs and downtime.In conclusion, the concept of frictional force (摩擦力) is fundamental to understanding the interactions between objects in our world. From enabling us to walk without slipping to ensuring the safe operation of vehicles, frictional force is an omnipresent force that affects many aspects of our lives. By studying and applying the principles of frictional force, we can improve safety, efficiency, and overall performance in numerous fields. Understanding this force not only enhances our comprehension of physics but also contributes to advancements in technology and engineering.

摩擦是一种抵抗两个接触表面相对运动的力。摩擦力（frictional force）的概念对于理解物体在日常生活中的相互作用至关重要。无论我们是在走路、驾驶，还是仅仅将一个物品放在桌子上，摩擦力在这些活动中都发挥着重要作用。在这篇文章中，我将探讨摩擦力的性质、类型及其在各个领域的应用。首先，了解摩擦力是什么是很重要的。当两个表面接触并试图滑过彼此时，就会产生这种力。摩擦力可以分为两种主要类型：静态摩擦力（static frictional force）和动态摩擦力（kinetic frictional force）。静态摩擦力是克服以开始移动静止物体所需的力量，而动态摩擦力则是作用于已经在运动的物体的力量。摩擦力的大小取决于几个因素，包括接触表面的性质和将它们压在一起的法向力。摩擦力在行走中的一个常见例子是，当我们的脚与地面接触时，鞋子与表面之间的静态摩擦力使我们能够推开并向前移动。如果没有足够的摩擦力，我们就会滑倒。这表明摩擦力对我们的日常活动和安全是多么重要。除了行走，摩擦力在汽车工业中也至关重要。汽车依靠轮胎与道路之间的摩擦力来加速、减速和操控。工程师必须仔细考虑轮胎和路面使用的材料，以优化摩擦力以提高性能和安全性。例如，潮湿或结冰的条件会大幅降低摩擦力，导致危险的驾驶情况。因此，理解和管理摩擦力对车辆设计和道路安全措施至关重要。此外，摩擦力不仅限于机械系统，还在各种科学和工程应用中发挥作用。例如，在制造业中，不同组件之间的摩擦力可能会影响机器和工具的效率。工程师通常会寻求最小化不必要的摩擦力，以减少设备的磨损，这可能导致成本增加和停机时间。总之，摩擦力（frictional force）的概念是理解我们世界中物体相互作用的基础。从使我们能够不滑倒地行走到确保车辆安全操作，摩擦力是一种无处不在的力量，影响着我们生活的许多方面。通过研究和应用摩擦力的原理，我们可以提高安全性、效率和整体性能。在众多领域中理解这一力量不仅增强了我们对物理学的理解，还促进了技术和工程的进步。