static friction

简明释义

静摩擦

英英释义

例句

1.When pushing a heavy box, the force required to overcome the static friction 静摩擦力 is greater than when it is already moving.

推动一个重箱子时，克服静摩擦力 静摩擦力所需的力量大于它已经在移动时所需的力量。

2.It takes more effort to start moving a stationary object due to static friction 静摩擦力 acting against the applied force.

由于作用在施加力上的静摩擦力 静摩擦力，启动一个静止物体需要更多的努力。

3.The car was unable to move because the static friction 静摩擦力 between the tires and the road was too high on the icy surface.

汽车无法移动，因为轮胎与道路之间的静摩擦力 静摩擦力在冰面上太大。

4.To start sliding down the slide, a child must first overcome the static friction 静摩擦力 of their shoes against the surface.

要开始滑下滑梯，一个孩子必须首先克服他们鞋子与表面之间的静摩擦力 静摩擦力。

5.The static friction 静摩擦力 between the book and the table kept it from sliding off.

书和桌子之间的静摩擦力 静摩擦力使它没有滑落。

作文

Static friction is a fundamental concept in physics that describes the force that resists the initiation of motion between two surfaces in contact. To better understand this concept, let's consider an everyday scenario: pushing a heavy box across the floor. When you initially attempt to push the box, you encounter resistance. This resistance is due to the static friction (静摩擦力) acting between the box and the floor. It is important to note that static friction (静摩擦力) is what keeps the box stationary until the applied force exceeds a certain threshold.The nature of static friction (静摩擦力) is such that it can vary depending on several factors, including the materials of the surfaces in contact and the amount of force applied. The maximum value of static friction (静摩擦力) can be calculated using the equation: F_friction = μ_s * N, where F_friction is the force of friction, μ_s is the coefficient of static friction, and N is the normal force acting perpendicular to the surfaces. This equation illustrates that the greater the normal force, the greater the potential for static friction (静摩擦力) to resist motion.One key characteristic of static friction (静摩擦力) is that it acts in the opposite direction of the applied force. For example, if you push the box to the right, the static friction (静摩擦力) will act to the left, opposing your effort. This opposing force continues to act until the applied force exceeds the maximum static frictional force, at which point the box will begin to move. Once the box is in motion, it encounters a different type of friction known as kinetic friction, which is generally lower than static friction.Understanding static friction (静摩擦力) is crucial not only in physics but also in engineering and various real-world applications. For instance, when designing vehicles, engineers must consider the static friction (静摩擦力) between tires and the road surface to ensure safety and performance. If the static friction (静摩擦力) is too low, vehicles may skid or lose control, leading to accidents.Moreover, static friction (静摩擦力) plays a vital role in our daily lives. Simple actions like walking rely heavily on the presence of static friction (静摩擦力). When we walk, our shoes push against the ground, and the static friction (静摩擦力) between the shoe soles and the ground prevents us from slipping. Without adequate static friction (静摩擦力), walking would be nearly impossible, as we would slide uncontrollably.In conclusion, static friction (静摩擦力) is an essential force that governs the interaction between stationary objects. It allows us to perform everyday tasks safely and effectively. By understanding the principles behind static friction (静摩擦力), we can appreciate its significance in both theoretical physics and practical applications. Whether it’s pushing a box, driving a car, or simply walking down the street, static friction (静摩擦力) is always at work, silently ensuring our movements are smooth and controlled.