average speed

简明释义

平均速度

英英释义

例句

1.Cyclists often track their average speed to improve their performance.

骑自行车的人常常跟踪他们的平均速度以提高表现。

2.During the race, the runner maintained an average speed of 10 km/h.

在比赛中，跑步者保持了10公里/小时的平均速度。

3.The average speed of a train can vary depending on the route and stops.

火车的平均速度可能会因路线和停靠而有所不同。

4.To calculate the average speed, divide the total distance by the total time taken.

要计算平均速度，将总距离除以总时间。

5.The car traveled 150 kilometers in two hours, so its average speed is 75 km/h.

这辆车在两小时内行驶了150公里，因此它的平均速度是75公里/小时。

作文

Understanding the concept of average speed is crucial for anyone who travels, whether by car, bicycle, or even on foot. The term average speed refers to the total distance traveled divided by the total time taken to travel that distance. It provides a simplified way to gauge how quickly one is moving from one point to another, which can be particularly useful in planning trips and estimating arrival times. For instance, if you drive from your home to a nearby city that is 120 kilometers away, and it takes you two hours to get there, your average speed would be calculated by dividing the distance (120 km) by the time (2 hours). This gives you an average speed of 60 kilometers per hour. Knowing this information helps you understand your travel efficiency and can assist in making decisions about future trips.In addition to personal travel, the concept of average speed plays an important role in various fields, including physics, engineering, and sports. In physics, for example, understanding average speed is essential when analyzing motion. Engineers often use average speed calculations when designing transportation systems to ensure they meet certain efficiency standards. Athletes also benefit from knowing their average speed during training sessions, as it allows them to track improvements over time and set realistic performance goals.Moreover, the average speed can vary significantly based on various factors. For example, traffic conditions, weather, and the type of vehicle being used can all impact how fast someone can travel. During peak hours, your average speed may decrease due to congestion, while driving on an open highway might allow you to achieve a higher average speed. Similarly, a cyclist's average speed may be affected by wind resistance or the terrain they are navigating.It is also important to distinguish between average speed and instantaneous speed. While average speed provides an overall view of how fast something is moving over a period of time, instantaneous speed measures how fast an object is moving at a specific moment. This distinction is particularly relevant in scientific studies where precise measurements are necessary.In conclusion, the concept of average speed is not only fundamental for everyday travel but also has broader implications in various professional fields. Understanding how to calculate and interpret average speed can enhance our ability to plan effectively, improve performance, and analyze motion. Whether you are a commuter, a student of physics, or an athlete, grasping the idea of average speed is essential for optimizing your activities and achieving your goals.

理解平均速度的概念对任何旅行的人来说都是至关重要的，无论是开车、骑自行车还是步行。术语平均速度指的是总距离除以总时间，提供了一种简化的方法来衡量一个人从一个点移动到另一个点的速度，这在规划旅行和估算到达时间时特别有用。例如，如果你从家里开车到附近的一座城市，距离为120公里，而你花了两个小时到达那里，那么你的平均速度将通过将距离（120公里）除以时间（2小时）来计算。这给你提供了一个平均速度为每小时60公里。了解这些信息可以帮助你理解你的旅行效率，并可以协助做出未来旅行的决策。除了个人旅行，平均速度的概念在物理学、工程和体育等多个领域也起着重要作用。例如，在物理学中，理解平均速度在分析运动时是必不可少的。工程师在设计交通系统时常常使用平均速度的计算，以确保它们满足某些效率标准。运动员在训练期间也会受益于了解他们的平均速度，因为这使他们能够跟踪随时间的改善并设定现实的表现目标。此外，平均速度可能会因各种因素而显著变化。例如，交通状况、天气和所使用的车辆类型都可能影响一个人旅行的速度。在高峰时段，由于拥堵，你的平均速度可能会下降，而在开放的高速公路上驾驶可能让你实现更高的平均速度。同样，骑自行车的人在逆风或复杂地形时，其平均速度也可能受到影响。还需要区分平均速度和瞬时速度。虽然平均速度提供了在一段时间内移动速度的总体视图，但瞬时速度则测量物体在特定时刻的移动速度。这一区别在科学研究中尤其相关，因为精确的测量是必要的。总之，平均速度的概念不仅对日常旅行至关重要，而且在各个专业领域也具有更广泛的意义。理解如何计算和解释平均速度可以增强我们有效规划、提高表现和分析运动的能力。无论你是通勤者、物理学学生还是运动员，掌握平均速度的概念对优化你的活动和实现目标至关重要。