constant velocity

简明释义

等速度

英英释义

例句

1.A train moving along a straight track at constant velocity 恒定速度 provides a smooth ride.

一列沿着直轨道以恒定速度行驶的火车提供了平稳的乘坐体验。

2.A car traveling at a constant velocity 恒定速度 will cover equal distances in equal intervals of time.

一辆以恒定速度行驶的汽车在相等的时间间隔内将覆盖相等的距离。

3.When an object moves with constant velocity 恒定速度, it does not accelerate or decelerate.

当一个物体以恒定速度移动时，它不会加速或减速。

4.In physics, the concept of constant velocity 恒定速度 is essential for understanding motion.

在物理学中，恒定速度的概念对于理解运动至关重要。

5.If you throw a ball and it travels with constant velocity 恒定速度, its speed remains unchanged until it hits the ground.

如果你扔一个球，它以恒定速度飞行，直到落地之前它的速度保持不变。

作文

In the realm of physics, the concept of constant velocity plays a crucial role in understanding motion. When we say that an object is moving with constant velocity, we mean that it travels the same distance in equal intervals of time, without changing its speed or direction. This notion can be illustrated through various everyday examples, making it easier to grasp for students and enthusiasts alike.Consider a car traveling on a straight highway at a steady speed of 60 kilometers per hour. If the driver maintains this speed without accelerating or decelerating, the car is said to be moving with constant velocity. In this scenario, the distance covered by the car is directly proportional to the time spent on the road. After one hour, the car will have traveled 60 kilometers; after two hours, it will have covered 120 kilometers, and so forth. This predictable pattern of movement exemplifies what it means to have constant velocity.The importance of constant velocity extends beyond simple examples. In scientific research and engineering, understanding how objects move at a constant speed is vital for designing safe transportation systems, predicting the paths of celestial bodies, and even sending spacecraft to distant planets. For instance, when scientists launch a satellite into orbit, they must calculate the precise velocity needed to ensure that it remains in a stable trajectory. If the satellite were to deviate from its constant velocity, it could either crash back to Earth or drift off into space.Moreover, the concept of constant velocity is foundational in the study of kinematics, which is the branch of mechanics that deals with the motion of objects without considering the forces that cause the motion. Kinematic equations often assume that an object moves with constant velocity to simplify calculations. By understanding this principle, students can solve problems involving displacement, time, and speed more effectively.However, it is essential to note that very few objects in the real world actually move with constant velocity for extended periods. Factors such as friction, air resistance, and changes in terrain can cause variations in speed and direction. Therefore, while constant velocity serves as a useful idealization, it is often necessary to account for these external forces in practical applications.In conclusion, the concept of constant velocity is fundamental in both theoretical and practical contexts. It allows us to understand and predict the motion of objects in a simplified manner. By recognizing the significance of constant velocity, we can better appreciate the complexities of motion and the laws that govern it. Whether in the classroom or in real-world applications, mastering this concept is vital for anyone interested in the sciences or engineering fields. As we continue to explore the universe and develop new technologies, the principles of constant velocity will remain an essential part of our understanding of motion and dynamics.

在物理学领域，恒定速度的概念在理解运动中发挥着至关重要的作用。当我们说一个物体以恒定速度运动时，我们的意思是它在相等的时间间隔内行驶相同的距离，而不改变速度或方向。这个概念可以通过各种日常例子来说明，使学生和爱好者更容易掌握。考虑一辆汽车在高速公路上以每小时60公里的稳定速度行驶。如果驾驶员保持这个速度而不加速或减速，那么这辆车就被认为是以恒定速度运动。在这种情况下，汽车行驶的距离与在路上花费的时间成正比。经过一个小时，汽车将行驶60公里；经过两个小时，它将行驶120公里，依此类推。这种可预测的运动模式示范了什么是恒定速度。恒定速度的重要性超出了简单的例子。在科学研究和工程中，理解物体以恒定速度运动是设计安全运输系统、预测天体轨迹甚至将航天器送往遥远行星的关键。例如，当科学家将卫星发射入轨道时，他们必须计算出确保卫星保持稳定轨迹所需的精确速度。如果卫星偏离了它的恒定速度，它可能会坠毁回地球或漂流到太空中。此外，恒定速度的概念是运动学研究的基础，运动学是力学的一个分支，处理物体的运动而不考虑导致运动的力。运动学方程通常假设物体以恒定速度运动，以简化计算。通过理解这一原则，学生可以更有效地解决涉及位移、时间和速度的问题。然而，必须注意的是，现实世界中很少有物体能够在长时间内以恒定速度运动。摩擦、空气阻力和地形变化等因素可能导致速度和方向的变化。因此，尽管恒定速度作为一种有用的理想化，但在实际应用中，通常需要考虑这些外部力。总之，恒定速度的概念在理论和实践上下文中都是基础。它使我们能够以简化的方式理解和预测物体的运动。通过认识到恒定速度的重要性，我们可以更好地欣赏运动的复杂性及其所遵循的法则。无论是在课堂上还是在现实应用中，掌握这一概念对任何对科学或工程领域感兴趣的人来说都是至关重要的。随着我们继续探索宇宙并开发新技术，恒定速度的原则将始终是我们理解运动和动力学的重要组成部分。