inelastic collision

简明释义

非弹性碰撞

英英释义

例句

1.The collision between the two freight trains resulted in an inelastic collision (非弹性碰撞) where the cars were severely damaged.

两列货运列车之间的碰撞导致了一次非弹性碰撞（非弹性碰撞），车辆受到了严重损坏。

2.In a game of pool, when the cue ball strikes another ball and they move together, it is an example of an inelastic collision (非弹性碰撞).

在台球游戏中，当母球撞击另一颗球并且它们一起移动时，这是一个非弹性碰撞（非弹性碰撞）的例子。

3.When two cars collide at a traffic intersection, they often undergo an inelastic collision (非弹性碰撞) where they crumple together rather than bouncing apart.

当两辆车在交通交叉口相撞时，它们通常经历一次非弹性碰撞（非弹性碰撞），它们会一起变形而不是反弹开。

4.The physics experiment demonstrated that when two clay balls collide, they stick together, illustrating an inelastic collision (非弹性碰撞).

物理实验演示了当两个粘土球相撞时，它们会粘在一起，说明了一个非弹性碰撞（非弹性碰撞）。

5.In sports, when a football hits a player and they both fall to the ground, this can be seen as an inelastic collision (非弹性碰撞).

在体育运动中，当足球击中一名球员并且他们都摔倒在地时，这可以看作是一次非弹性碰撞（非弹性碰撞）。

作文

In the realm of physics, understanding the different types of collisions is crucial for analyzing how objects interact with one another. One significant type of collision is known as an inelastic collision, where the total kinetic energy of the system is not conserved before and after the collision. Unlike elastic collisions, where both momentum and kinetic energy are conserved, inelastic collisions allow for some of the kinetic energy to be transformed into other forms of energy, such as heat or sound. This transformation often results in a loss of energy that cannot be recovered in the form of motion.To illustrate this concept, consider a simple example involving two cars colliding at an intersection. When they collide, if they crumple together and move as a single unit post-collision, this scenario exemplifies an inelastic collision. The deformation of the cars indicates that some kinetic energy has been converted into the energy required to cause the deformation, thus resulting in a loss of the original kinetic energy that the cars possessed before the impact.Another critical aspect of inelastic collisions is that while momentum is still conserved, the kinetic energy is not. This means that the total momentum of the two cars before the collision will equal the total momentum after the collision, but the total kinetic energy will be less than it was initially. This principle can be mathematically expressed using the equations of momentum and kinetic energy. For instance, if we denote the masses of the two cars as m1 and m2, and their velocities before the collision as v1 and v2, the conservation of momentum can be expressed as:m1 * v1 + m2 * v2 = (m1 + m2) * v_f,where v_f is the final velocity of the combined mass after the collision. However, the kinetic energy before and after the collision will differ:(1/2 * m1 * v1^2 + 1/2 * m2 * v2^2) > (1/2 * (m1 + m2) * v_f^2).This inequality illustrates that some energy has been lost in the process.In practical applications, understanding inelastic collisions is essential for safety design in vehicles. Engineers must account for the energy absorbed during collisions to enhance passenger safety. Crumple zones in modern cars are designed to increase the time over which a collision occurs, allowing for more energy to be absorbed by the structure of the car rather than transferred to the occupants.In sports, inelastic collisions also play a role. For example, when a football player tackles another player, the two bodies may collide and momentarily stick together before falling to the ground. The energy lost in such a tackle is evident in the sounds made and the movements that follow.In conclusion, inelastic collisions are a fundamental concept in physics that highlights the complexities of energy transfer during interactions between objects. By studying these collisions, we gain insights into the principles of momentum and energy conservation, which have real-world implications in various fields, including automotive safety and sports science. Understanding these concepts not only enhances our comprehension of physical laws but also aids in the development of technologies that improve our daily lives.

在物理学领域，理解不同类型的碰撞对分析物体之间的相互作用至关重要。其中一个重要的碰撞类型被称为非弹性碰撞，在这种碰撞中，系统的总动能在碰撞前后并不守恒。与弹性碰撞不同，在弹性碰撞中，动量和动能都得到守恒，而在非弹性碰撞中，部分动能会转化为其他形式的能量，如热能或声能。这种转化通常导致能量损失，无法以运动的形式恢复。为了说明这一概念，考虑一个简单的例子，涉及两辆汽车在十字路口相撞。当它们相撞时，如果它们一起变形并在碰撞后作为一个整体移动，这种情况就体现了非弹性碰撞。汽车的变形表明一些动能已经转化为造成变形所需的能量，从而导致碰撞前汽车原本拥有的动能损失。非弹性碰撞的另一个关键方面是，尽管动量仍然守恒，但动能却不守恒。这意味着，两辆汽车在碰撞前的总动量将等于碰撞后的总动量，但总动能将低于最初的值。这个原理可以通过动量和动能的方程式进行数学表达。例如，如果我们将两辆车的质量分别表示为m1和m2，碰撞前的速度表示为v1和v2，则动量守恒可以表示为：m1 * v1 + m2 * v2 = (m1 + m2) * v_f，其中v_f是碰撞后合并质量的最终速度。然而，碰撞前后的动能将有所不同：(1/2 * m1 * v1^2 + 1/2 * m2 * v2^2) > (1/2 * (m1 + m2) * v_f^2)。这个不等式表明，在过程中有一部分能量损失。在实际应用中，理解非弹性碰撞对车辆安全设计至关重要。工程师必须考虑碰撞过程中吸收的能量，以增强乘客的安全性。现代汽车中的变形区设计旨在增加碰撞发生的时间，使更多的能量被汽车结构吸收，而不是传递给乘员。在体育运动中，非弹性碰撞也起着重要作用。例如，当一名足球运动员铲倒另一名运动员时，两个身体可能相撞并短暂粘在一起，然后倒在地上。在这样的铲球中损失的能量在发出的声音和随后的动作中显而易见。总之，非弹性碰撞是物理学中的一个基本概念，突显了在物体相互作用过程中能量转移的复杂性。通过研究这些碰撞，我们获得了动量和能量守恒原理的深刻见解，这在汽车安全和体育科学等多个领域具有现实意义。理解这些概念不仅增强了我们对物理法则的理解，也有助于技术的发展，从而改善我们的日常生活。