impulse force

简明释义

冲力

英英释义

例句

1.The rocket's engines produce a strong impulse force to lift it off the ground.

火箭的发动机产生强大的冲击力将其升离地面。

2.The soccer player kicked the ball with an impulse force, sending it flying into the goal.

这名足球运动员用一个冲击力踢球，使其飞进了球门。

3.The gymnast used an impulse force to propel herself off the vault.

这位体操运动员利用冲击力从跳马上跃起。

4.In a car crash, the impulse force can cause significant damage to both vehicles.

在车祸中，冲击力可能会对两辆车造成重大损害。

5.During the collision, the impulse force acted on the objects for a very short time.

在碰撞过程中，冲击力对物体作用的时间非常短暂。

作文

The concept of impulse force is fundamental in the study of physics, particularly in understanding how forces affect motion. An impulse force refers to a force that is applied over a short period of time, resulting in a change in momentum. This is crucial in various real-world applications, such as sports, vehicle collisions, and even in the design of safety features in cars. To illustrate this concept, consider a simple example: when a baseball bat strikes a ball, the impulse force exerted by the bat on the ball causes it to accelerate rapidly in the opposite direction. The shorter the time duration of the impact, the greater the impulse force needed to achieve that change in momentum.Understanding impulse force also helps us comprehend the principle of conservation of momentum. When two objects collide, the total momentum before the collision must equal the total momentum after the collision, provided no external forces are acting on them. The impulse force during the collision is what changes the momentum of the involved objects. For instance, in a car crash, the impulse force can be tremendously high, leading to significant changes in the vehicles' speeds and directions.In sports, athletes often utilize the concept of impulse force to enhance their performance. For example, a pole vaulter must apply a significant impulse force to the pole in order to propel themselves upwards and over the bar. The timing and magnitude of this force are critical; too little force may result in failure to clear the height, while too much force could lead to injury or loss of control.Moreover, engineers design safety systems in vehicles, such as airbags and crumple zones, with an understanding of impulse force. When a car experiences a collision, the impulse force generated can be life-threatening. Airbags deploy rapidly to increase the time over which the force acts on the passenger, thereby reducing the peak force experienced and minimizing injury. Crumple zones are designed to deform during a crash, extending the time over which the impulse force is applied, again helping to protect the occupants.In summary, the impulse force is a key concept in both theoretical and applied physics. Its implications stretch across various fields, from sports to engineering. Understanding how impulse force works allows individuals to better appreciate the dynamics of motion and the importance of safety measures in our everyday lives. As we continue to explore the intricacies of forces and motion, the role of impulse force will undoubtedly remain a vital area of study, influencing both scientific research and practical applications in technology and safety standards.

“冲击力”这一概念在物理学的研究中是基础性的，尤其是在理解力如何影响运动方面。“冲击力”指的是在短时间内施加的力，从而导致动量的变化。这在各种现实应用中至关重要，例如体育、车辆碰撞，甚至汽车安全特性的设计。为了说明这一概念，可以考虑一个简单的例子：当棒球棒击打球时，棒球棒对球施加的“冲击力”使球迅速朝相反方向加速。冲击的时间越短，所需的“冲击力”就越大，以实现动量的变化。理解“冲击力”也有助于我们理解动量守恒原理。当两个物体发生碰撞时，碰撞前的总动量必须等于碰撞后的总动量，前提是没有外力作用于它们。在碰撞过程中，“冲击力”就是改变相关物体动量的力量。例如，在车祸中，产生的“冲击力”可能非常大，导致车辆速度和方向的显著变化。在体育中，运动员常常利用“冲击力”的概念来提高他们的表现。例如，撑杆跳高运动员必须对杆施加相当大的“冲击力”，以便将自己向上抛起并越过横杆。这个力量的时机和大小至关重要；力量太小可能导致无法越过高度，而力量过大则可能导致受伤或失去控制。此外，工程师在车辆中设计安全系统，如安全气囊和可变形区域，是基于对“冲击力”的理解。当汽车发生碰撞时，产生的“冲击力”可能危及生命。安全气囊快速展开，以增加施加在乘客身上的力的作用时间，从而降低所经历的峰值力并减少伤害。可变形区域旨在在碰撞时变形，延长施加“冲击力”的时间，再次帮助保护乘员。总之，“冲击力”是理论和应用物理中的关键概念。它的影响跨越多个领域，从体育到工程。理解“冲击力”的工作原理使人们更好地欣赏运动的动态以及我们日常生活中安全措施的重要性。随着我们继续探索力和运动的复杂性，“冲击力”的角色无疑将仍然是一个重要的研究领域，影响科学研究和技术与安全标准的实际应用。