impulsive force

简明释义

冲击力

英英释义

例句

1.The impulsive force from the explosion shattered the windows of nearby buildings.

爆炸产生的冲击力打碎了附近建筑物的窗户。

2.The car was suddenly stopped by an impulsive force, causing the passengers to jolt forward.

汽车被一个突然的冲击力停住，导致乘客向前猛撞。

3.When the hammer strikes the nail, it exerts an impulsive force that drives the nail into the wood.

当锤子击打钉子时，它施加的冲击力将钉子打入木头中。

4.During a collision, the impulsive force can cause significant damage to both vehicles.

在碰撞过程中，冲击力可能对两辆车造成严重损坏。

5.In sports, an athlete can generate an impulsive force to achieve greater speed during a sprint.

在运动中，运动员可以产生一个冲击力以在短跑中获得更大的速度。

作文

In the realm of physics, understanding forces is crucial to comprehending how objects interact with one another. One particular type of force that often intrigues students and professionals alike is the impulsive force. This term refers to a force that acts on an object for a very short duration but has a significant impact on its motion. The concept of impulsive force can be illustrated through various real-life scenarios, such as a baseball bat striking a ball or a hammer hitting a nail. In both cases, the force applied is intense but lasts only for a brief moment, resulting in a rapid change in momentum.The definition of impulsive force can be understood more deeply by examining the principle of impulse and momentum. Impulse is defined as the product of the average force exerted on an object and the time duration over which it is applied. Mathematically, it is expressed as:Impulse = Force × TimeThis equation highlights the relationship between force and time in the context of impulsive force. When a large force is applied over a short time, the resulting impulse can lead to a significant change in momentum, which is the product of an object's mass and its velocity. Thus, even a brief application of a strong force can yield dramatic results in terms of motion.Consider the example of a football player kicking a ball. The player exerts a powerful kick, which represents an impulsive force. Although the contact time between the foot and the ball is minimal, the force applied is substantial enough to propel the ball at high speed. This scenario exemplifies how impulsive force can lead to swift changes in an object's velocity, illustrating the power of brief yet intense interactions.Moreover, the concept of impulsive force is not limited to sports. In engineering and safety design, understanding these forces is vital. For instance, when designing vehicles, engineers must consider the impulsive force experienced during collisions. These forces can cause severe damage and injuries, thus influencing the development of safety features like airbags and crumple zones. By analyzing the effects of impulsive force, designers can create more resilient structures that better protect occupants during sudden impacts.In addition to practical applications, the study of impulsive force also provides insights into natural phenomena. For example, the impact of meteoroids entering the Earth's atmosphere generates immense impulsive forces, leading to shockwaves and, in some cases, explosions. Understanding these forces helps scientists predict the potential effects of such events and develop strategies to mitigate their impact on Earth.In conclusion, the concept of impulsive force plays a crucial role in physics, engineering, and everyday life. By grasping how this force operates and its implications, we can better understand the dynamics of motion and the consequences of rapid interactions. Whether in sports, vehicle design, or natural events, recognizing the significance of impulsive force allows us to appreciate the complexities of the physical world around us. As we continue to explore these forces, we gain valuable knowledge that can enhance our safety, performance, and understanding of the universe.

在物理学领域，理解力是理解物体如何相互作用的关键。一种特别吸引学生和专业人士的力就是冲击力。这个术语指的是作用于物体的短暂但对其运动产生显著影响的力。通过各种现实生活场景可以说明冲击力的概念，比如棒球棒击打球或锤子敲打钉子。在这两种情况下，施加的力是强烈的，但持续时间仅为短暂的一瞬间，从而导致动量的快速变化。通过研究冲量和动量的原理，可以更深入地理解冲击力的定义。冲量被定义为施加在物体上的平均力与施加该力的时间持续时间的乘积。从数学上讲，它可以表示为：冲量 = 力 × 时间这个方程突出了在冲击力的背景下力与时间之间的关系。当施加一个大的力而时间很短时，所产生的冲量可能会导致动量的显著变化，而动量是物体的质量与其速度的乘积。因此，即使是短暂施加的强大力量也能在运动方面产生戏剧性的结果。考虑一个足球运动员踢球的例子。运动员施加一个强有力的踢击，这代表了一个冲击力。尽管脚与球之间的接触时间极短，但施加的力足够大，可以将球以高速度推进。这个场景例证了冲击力如何导致物体速度的迅速变化，展示了短暂而强烈的相互作用的力量。此外，冲击力的概念不仅限于体育。在工程和安全设计中，理解这些力量至关重要。例如，在设计车辆时，工程师必须考虑碰撞过程中经历的冲击力。这些力量可能造成严重的损害和伤害，因此影响安全特征的开发，如安全气囊和缓冲区。通过分析冲击力的影响，设计师可以创建更坚固的结构，更好地保护乘客在突然冲击中的安全。除了实际应用，研究冲击力还提供了对自然现象的洞察。例如，流星体进入地球大气层的冲击产生巨大的冲击力，导致冲击波，有时甚至爆炸。理解这些力量帮助科学家预测此类事件的潜在影响，并制定减轻其对地球影响的策略。总之，冲击力的概念在物理学、工程学和日常生活中发挥着至关重要的作用。通过掌握这种力量的运作及其影响，我们可以更好地理解运动的动态以及快速相互作用的后果。无论是在体育、车辆设计还是自然事件中，认识到冲击力的重要性使我们能够欣赏周围物理世界的复杂性。随着我们继续探索这些力量，我们获得的宝贵知识可以增强我们的安全性、表现和对宇宙的理解。