absolute acceleration

简明释义

绝对加速度

英英释义

例句

1.The car's absolute acceleration 绝对加速度 was measured at 0 to 60 mph in just 3.5 seconds.

这辆车的绝对加速度 absolute acceleration 从0到60英里每小时仅需3.5秒。

2.In physics, absolute acceleration 绝对加速度 refers to the total change in velocity over time.

在物理学中，绝对加速度 absolute acceleration 指的是速度随时间的总变化。

3.To calculate the absolute acceleration 绝对加速度, you need to know the initial and final velocities.

要计算绝对加速度 absolute acceleration，您需要知道初始和最终速度。

4.When analyzing motion, we often focus on absolute acceleration 绝对加速度 rather than relative changes.

在分析运动时，我们通常关注绝对加速度 absolute acceleration而不是相对变化。

5.The rocket achieved an absolute acceleration 绝对加速度 of 20 m/s² during launch.

火箭在发射时达到了绝对加速度 absolute acceleration 20米每秒平方。

作文

In the realm of physics, the concept of absolute acceleration plays a crucial role in understanding motion and the forces that govern it. To grasp this idea, we must first differentiate between relative and absolute measures of acceleration. While relative acceleration refers to the change in velocity of an object compared to another object, absolute acceleration (绝对加速度) describes the rate of change of velocity of an object in relation to a fixed point in space, typically the Earth or an inertial frame of reference. Consider a car accelerating on a straight road. If we observe the car from another vehicle moving at a constant speed, we may perceive the car's acceleration differently than if we were standing still on the roadside. This is where the distinction between relative and absolute acceleration becomes significant. The car's acceleration relative to the other vehicle would be less than its absolute acceleration, which is measured against the ground. Understanding absolute acceleration is essential for various applications in engineering and physics. For instance, in designing vehicles, engineers must account for how quickly a car can accelerate from a standstill to a certain speed. This requires calculating the absolute acceleration to ensure safety and performance standards are met. Additionally, in fields such as aerospace, understanding the absolute acceleration of spacecraft is vital for navigation and control during launch and re-entry phases. One interesting aspect of absolute acceleration is its relationship with gravity. An object in free fall experiences an absolute acceleration equal to the acceleration due to gravity, approximately 9.81 m/s² downward. This principle is fundamental in understanding how objects behave under the influence of gravitational forces. It also highlights the difference between absolute acceleration and apparent weightlessness experienced by astronauts in orbit, where they are in a state of free fall along with their spacecraft. Furthermore, the concept of absolute acceleration extends beyond terrestrial applications. In astrophysics, scientists study the absolute acceleration of celestial bodies, such as planets and stars, to understand their movements and interactions within the universe. For example, the acceleration of a planet in orbit around a star is influenced by the gravitational pull of that star, and measuring this absolute acceleration helps astronomers predict planetary positions and behaviors. In conclusion, absolute acceleration (绝对加速度) is a fundamental concept in physics that provides insights into the motion of objects in a fixed frame of reference. Its applications range from everyday scenarios, such as driving a car, to complex systems in aerospace and astrophysics. By comprehending this concept, we can better understand the dynamics of motion and the underlying forces that shape our physical world.

在物理学领域，绝对加速度的概念在理解运动及其所受力的作用中发挥着至关重要的作用。要掌握这个概念，我们必须首先区分相对和绝对的加速度测量。相对加速度是指一个物体的速度变化与另一个物体相比，而绝对加速度(absolute acceleration)则描述了一个物体的速度变化率，相对于空间中的一个固定点，通常是地球或惯性参考系。考虑一辆在直路上加速的汽车。如果我们从另一辆以恒定速度行驶的车辆观察这辆车，我们可能会与站在路边的人看到的情况有所不同。这就是相对加速度和绝对加速度之间区别变得重要的地方。相对于另一辆车，这辆车的加速度将小于其相对于地面的绝对加速度。理解绝对加速度对于工程和物理学的各种应用至关重要。例如，在设计车辆时，工程师必须考虑汽车从静止状态加速到某一速度的速度。这需要计算绝对加速度以确保满足安全和性能标准。此外，在航空航天等领域，理解航天器的绝对加速度对于发射和重返阶段的导航和控制至关重要。绝对加速度的一个有趣方面是它与重力的关系。自由下落的物体经历的绝对加速度等于重力加速度，约为9.81米/秒²向下。这一原理是理解物体在重力作用下行为的基础。它还突出了绝对加速度与宇航员在轨道上经历的失重感之间的区别，在这种情况下，他们与航天器一起处于自由下落状态。此外，绝对加速度的概念超越了地球应用。在天体物理学中，科学家研究天体的绝对加速度，例如行星和恒星，以了解它们在宇宙中的运动和相互作用。例如，围绕恒星轨道运行的行星的加速度受到该恒星引力的影响，测量这种绝对加速度有助于天文学家预测行星的位置和行为。总之，绝对加速度(absolute acceleration)是物理学中的一个基本概念，它提供了对固定参考系中物体运动的深入理解。它的应用范围从日常场景，例如驾驶汽车，到航空航天和天体物理学中的复杂系统。通过理解这一概念，我们可以更好地理解运动的动态及塑造我们物理世界的基本力量。