constant velocity

简明释义

等速度恒速

英英释义

例句

1.The satellite orbits the Earth at a constant velocity 恒定速度, maintaining its path due to gravitational forces.

卫星以恒定速度 constant velocity绕地球运行，由于引力保持其轨道。

2.To simplify calculations, we assume that the cyclist travels at a constant velocity 恒定速度 over flat terrain.

为了简化计算，我们假设骑自行车的人在平坦的地形上以恒定速度 constant velocity行驶。

3.In physics, an object in free space can maintain a constant velocity 恒定速度 if no external forces act on it.

在物理学中，如果没有外力作用，物体可以保持恒定速度 constant velocity。

4.When a train travels on a straight track without acceleration, it moves at a constant velocity 恒定速度.

当火车在一条直轨道上行驶而没有加速时，它以恒定速度 constant velocity行驶。

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

一辆以恒定速度 constant velocity行驶的汽车将在相等的时间间隔内覆盖相等的距离。

作文

In the study of physics, understanding the concept of constant velocity is crucial for analyzing motion. When we say that an object is moving with constant velocity, we mean that it travels in a straight line at a steady speed without changing direction. This implies that both the speed and direction of the object remain unchanged over time. For instance, consider a car driving along a straight highway at a speed of 60 kilometers per hour. If it maintains this speed and direction, we can accurately describe its motion as having constant velocity. The importance of constant velocity extends beyond simple examples; it serves as a fundamental principle in various fields such as engineering, astronomy, and even everyday life. In engineering, when designing vehicles or machinery, engineers must account for constant velocity to ensure optimal performance and safety. For example, aircraft are designed to achieve constant velocity during cruising to maximize fuel efficiency and maintain stability.In astronomy, the concept of constant velocity helps scientists understand the movement of celestial bodies. The planets in our solar system orbit the sun at constant velocity under the influence of gravitational forces. By studying these velocities, astronomers can predict planetary positions and understand the dynamics of our universe. Moreover, the idea of constant velocity can be applied to our daily lives. Think about riding a bicycle on a flat road. If you pedal steadily without accelerating or decelerating, you are moving at a constant velocity. This concept can help us understand how to maintain balance and control while cycling. However, it is essential to note that very few objects in the real world actually move with perfect constant velocity. Most movements are affected by external forces such as friction, air resistance, and gravity, which can cause variations in speed and direction. For example, a car may experience changes in velocity due to traffic conditions, road inclines, or weather factors. Thus, while the idea of constant velocity is a useful simplification, it is often necessary to consider these external influences to gain a more accurate understanding of motion.In conclusion, the concept of constant velocity is a foundational aspect of physics that helps us analyze and understand motion in various contexts. From the design of vehicles to the movements of planets, recognizing the significance of constant velocity allows us to make informed decisions in engineering, science, and everyday activities. While true constant velocity is rare in practice, it remains a valuable tool for simplifying complex motion and gaining insights into the principles that govern our world.

在物理学的研究中，理解恒定速度的概念对于分析运动至关重要。当我们说一个物体以恒定速度移动时，我们的意思是它沿着一条直线以稳定的速度行驶，且方向不变。这意味着物体的速度和方向在一段时间内保持不变。例如，考虑一辆汽车以每小时60公里的速度沿着一条直路行驶。如果它保持这个速度和方向，我们可以准确地描述它的运动为具有恒定速度。恒定速度的重要性超越了简单的例子；它在工程、天文学甚至日常生活等多个领域都是一个基本原则。在工程学中，在设计车辆或机械时，工程师必须考虑恒定速度以确保最佳性能和安全性。例如，飞机在巡航时被设计为达到恒定速度，以最大化燃油效率并保持稳定。在天文学中，恒定速度的概念帮助科学家理解天体的运动。我们太阳系中的行星在引力的影响下以恒定速度绕着太阳公转。通过研究这些速度，天文学家可以预测行星的位置并理解我们宇宙的动态。此外，恒定速度的思想可以应用到我们的日常生活中。想象一下在平坦的道路上骑自行车。如果你以稳定的速度踏板而不加速或减速，你就是以恒定速度移动。这个概念可以帮助我们理解如何在骑自行车时保持平衡和控制。然而，必须注意的是，现实世界中很少有物体实际以完美的恒定速度移动。大多数运动都受到外部力量的影响，例如摩擦力、空气阻力和重力，这些因素可能导致速度和方向的变化。例如，一辆汽车可能由于交通状况、道路坡度或天气因素而经历速度的变化。因此，虽然恒定速度的概念是一个有用的简化，但通常需要考虑这些外部影响，以便更准确地理解运动。总之，恒定速度的概念是物理学的一个基础方面，帮助我们在各种背景下分析和理解运动。从车辆设计到行星运动，认识到恒定速度的重要性使我们能够在工程、科学和日常活动中做出明智的决策。尽管真实的恒定速度在实践中是罕见的，但它仍然是简化复杂运动并获得对支配我们世界的原则的洞察的宝贵工具。