non-uniform motion

简明释义

变速运动

英英释义

例句

1.The car accelerated and decelerated at different rates, demonstrating 非匀速运动.

这辆车以不同的速度加速和减速，展示了非匀速运动。

2.When a cyclist pedals harder going uphill, they experience 非匀速运动.

当自行车手在上坡时用力踩踏板时，他们经历了非匀速运动。

3.In a roller coaster ride, the changes in speed and direction illustrate 非匀速运动.

在过山车上，速度和方向的变化展示了非匀速运动。

4.The motion of a falling object can be classified as 非匀速运动 due to gravity's acceleration.

由于重力加速度，落体的运动可以被归类为非匀速运动。

5.The bus stopped frequently, making its journey an example of 非匀速运动.

公交车频繁停车，使它的旅程成为非匀速运动的一个例子。

作文

In the study of physics, motion is a fundamental concept that describes how objects move. One important classification of motion is non-uniform motion, which refers to the movement of an object when it does not cover equal distances in equal intervals of time. This type of motion can be observed in various real-life situations, such as a car accelerating or decelerating on the road, a roller coaster ride, or even a person walking with varying speeds. Understanding non-uniform motion is crucial for grasping the principles of dynamics and kinematics.To illustrate non-uniform motion, let’s consider a simple example: a car driving down a highway. Initially, the car may start from rest and gradually accelerate as the driver presses the gas pedal. During this phase, the distance covered by the car in each second increases, indicating that the car is experiencing non-uniform motion. After reaching a certain speed, the driver might need to slow down due to traffic conditions or a red light. This deceleration also exemplifies non-uniform motion, as the car is now covering less distance in the same time intervals.The mathematical representation of non-uniform motion often involves graphs and equations. For instance, a velocity-time graph can depict how the speed of an object changes over time. In the case of non-uniform motion, the graph would show a curve rather than a straight line, indicating the varying speeds at different moments. This contrasts with uniform motion, where the object travels at a constant speed, represented by a straight line on the graph.Another aspect of non-uniform motion is the effect of forces acting on an object. According to Newton's laws of motion, an object will change its state of motion when acted upon by an external force. For example, if a soccer ball is kicked, it will initially accelerate quickly but then experience air resistance and friction with the ground, causing it to slow down. This change in speed exemplifies non-uniform motion, as the ball does not maintain a consistent velocity throughout its travel.In conclusion, non-uniform motion is an essential concept in understanding how objects move in our world. It encompasses a wide range of scenarios, from vehicles on the road to sports activities. By studying non-uniform motion, we can better comprehend the dynamics of moving objects and the forces that influence their behavior. This knowledge is not only vital for students of physics but also for anyone interested in the mechanics of motion in everyday life. Recognizing the characteristics of non-uniform motion helps us appreciate the complexity of movement and the underlying principles that govern it.

在物理学的研究中，运动是一个基本概念，用于描述物体如何移动。运动的一个重要分类是非匀速运动，指的是物体在不等时间间隔内覆盖不等距离的运动。这种类型的运动可以在各种现实生活场景中观察到，例如汽车在道路上加速或减速、过山车的乘坐体验，甚至是一个人以不同速度行走。理解非匀速运动对于掌握动力学和运动学的原理至关重要。为了说明非匀速运动，让我们考虑一个简单的例子：一辆汽车在高速公路上行驶。起初，汽车可能从静止状态开始，随着驾驶员踩下油门逐渐加速。在这个阶段，汽车在每一秒钟内覆盖的距离增加，这表明汽车正在经历非匀速运动。在达到一定速度后，驾驶员可能需要因交通状况或红灯而减速。这种减速同样体现了非匀速运动，因为汽车现在在相同的时间间隔内覆盖的距离减少。非匀速运动的数学表示通常涉及图形和方程。例如，速度-时间图可以描绘物体的速度如何随时间变化。在非匀速运动的情况下，图表将显示出曲线而不是直线，表明在不同的时刻速度的变化。这与均匀运动形成对比，均匀运动是指物体以恒定速度移动，在图表上表示为直线。非匀速运动的另一个方面是作用在物体上的力的影响。根据牛顿的运动定律，当外力作用于物体时，物体的运动状态会发生变化。例如，如果一只足球被踢，它会最初快速加速，但随后会受到空气阻力和与地面摩擦的影响，从而减速。这种速度的变化体现了非匀速运动，因为足球在整个运动过程中并未保持恒定的速度。总之，非匀速运动是理解我们世界中物体如何运动的重要概念。它涵盖了广泛的场景，从公路上的车辆到体育活动。通过研究非匀速运动，我们可以更好地理解运动物体的动态以及影响其行为的力量。这种知识不仅对物理学生至关重要，而且对任何对日常生活中运动机制感兴趣的人也同样重要。认识到非匀速运动的特征有助于我们欣赏运动的复杂性以及支配运动的基本原理。