constant acceleration

简明释义

等加速度

英英释义

例句

1.An object in free fall experiences constant acceleration 恒定加速度 due to gravity.

自由落体的物体由于重力而经历constant acceleration 恒定加速度。

2.The roller coaster was designed for constant acceleration 恒定加速度 to provide a thrilling experience.

过山车的设计是为了实现constant acceleration 恒定加速度，以提供刺激的体验。

3.When a train departs the station, it typically starts with constant acceleration 恒定加速度 until it reaches cruising speed.

当火车离开车站时，它通常以constant acceleration 恒定加速度启动，直到达到巡航速度。

4.In physics, we often study objects in motion under constant acceleration 恒定加速度 to simplify calculations.

在物理学中，我们常常研究在constant acceleration 恒定加速度下运动的物体，以简化计算。

5.A car moving with constant acceleration 恒定加速度 can reach its top speed in a shorter time.

一辆以constant acceleration 恒定加速度行驶的汽车可以在更短的时间内达到其最高速度。

作文

In the realm of physics, the concept of constant acceleration is pivotal to understanding the motion of objects. When we refer to constant acceleration (恒定加速度), we mean that an object is experiencing a steady increase in velocity over time. This phenomenon can be observed in various real-world scenarios, such as a car speeding up on a straight road or a freely falling object under the influence of gravity. The mathematical representation of constant acceleration is often depicted through kinematic equations, which allow us to predict an object's position and velocity at any given moment.One of the most common examples of constant acceleration is the motion of a car accelerating from rest. Imagine a car that starts from a complete stop and accelerates uniformly at a rate of 2 meters per second squared. This means that every second, the car's speed increases by 2 meters per second. After one second, it would be traveling at 2 meters per second; after two seconds, 4 meters per second; and so forth. The beauty of constant acceleration lies in its predictability. We can easily calculate how far the car will travel in a given amount of time using the formula: distance = initial velocity × time + 0.5 × acceleration × time². In this case, since the initial velocity is zero, the distance traveled after three seconds would be 0.5 × 2 × 3² = 9 meters.Another fascinating aspect of constant acceleration is its relationship with gravity. When an object is dropped from a height, it falls towards the Earth with a constant acceleration of approximately 9.81 meters per second squared, regardless of its mass. This means that every second, the speed of the falling object increases by about 9.81 meters per second. This principle was famously demonstrated by Galileo, who dropped two different weights from the Leaning Tower of Pisa and found that they hit the ground simultaneously. This discovery challenged the long-held belief that heavier objects fall faster than lighter ones and laid the groundwork for modern physics.Understanding constant acceleration also has practical implications in engineering and technology. For example, when designing roller coasters, engineers must account for the forces experienced by riders as they accelerate and decelerate. A smooth transition between different speeds ensures that the ride is both thrilling and safe. Similarly, in the field of aerospace, spacecraft are designed to achieve constant acceleration during launch to escape Earth's gravitational pull efficiently.In conclusion, the concept of constant acceleration (恒定加速度) is essential for analyzing motion in both theoretical and practical contexts. Whether it's the simple act of a car speeding up or the complex calculations involved in launching a spacecraft, understanding how objects behave under constant acceleration allows us to make predictions and design systems that harness this fundamental principle of physics. As we continue to explore the laws of motion, the significance of constant acceleration remains a cornerstone of our understanding of the physical world.

在物理学领域，恒定加速度的概念对于理解物体的运动至关重要。当我们提到恒定加速度时，我们是指一个物体在时间上经历着速度的稳定增加。这种现象可以在各种现实场景中观察到，比如一辆汽车在笔直的道路上加速或一个在重力影响下自由下落的物体。恒定加速度的数学表示通常通过运动学方程来描绘，这使我们能够预测物体在任何给定时刻的位置和速度。恒定加速度最常见的例子之一是汽车从静止状态运动。想象一下，一辆汽车从完全停止开始，以每秒2米的均匀加速度加速。这意味着每秒，汽车的速度增加2米每秒。经过一秒，它将以2米每秒的速度行驶；经过两秒，速度为4米每秒；依此类推。恒定加速度的美在于其可预测性。我们可以轻松计算出汽车在给定时间内行驶的距离，使用公式：距离 = 初始速度 × 时间 + 0.5 × 加速度 × 时间²。在这种情况下，由于初始速度为零，因此三秒后行驶的距离将是0.5 × 2 × 3² = 9米。恒定加速度的另一个迷人方面是它与重力的关系。当一个物体从高度掉落时，它以大约9.81米每秒的恒定加速度向地球坠落，无论其质量如何。这意味着每秒，掉落物体的速度增加约9.81米每秒。这个原理由伽利略著名地证明，他从比萨斜塔上同时释放两个不同重量的物体，发现它们同时落地。这一发现挑战了长期以来认为较重物体下落更快的观点，并为现代物理学奠定了基础。理解恒定加速度在工程和技术中也具有实际意义。例如，在设计过山车时，工程师必须考虑骑乘者在加速和减速过程中的受力情况。平滑的速度过渡确保了游乐设施既刺激又安全。同样，在航空航天领域，航天器被设计为在发射时实现恒定加速度，以有效地逃离地球的引力。总之，恒定加速度的概念在理论和实践背景中分析运动至关重要。无论是汽车加速的简单行为，还是发射航天器时涉及的复杂计算，理解物体在恒定加速度下的行为使我们能够做出预测并设计利用这一物理基本原理的系统。在我们继续探索运动法则的过程中，恒定加速度的重要性仍然是我们理解物理世界的基石。