average speed

简明释义

平均速度

英英释义

例句

1.The average speed of the train was significantly faster than that of the bus.

火车的平均速度明显快于公共汽车。

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

骑自行车的人常常记录他们的平均速度以提高表现。

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

要计算平均速度，将总距离除以总耗时。

4.The car maintained an average speed of 60 miles per hour during the trip.

这辆车在旅途中保持了每小时60英里的平均速度。

5.During the race, I reached an average speed of 15 kilometers per hour.

在比赛中，我达到了每小时15公里的平均速度。

作文

Understanding the concept of average speed is crucial for anyone who engages in activities involving movement, whether it be driving, cycling, or even walking. The term average speed refers to the total distance traveled divided by the total time taken to cover that distance. This simple formula can provide valuable insights into how efficiently one travels from one point to another.For instance, consider a road trip where a person drives 300 kilometers in 3 hours. To calculate the average speed, one would use the formula: average speed = total distance / total time = 300 km / 3 hrs = 100 km/hr.This means that the driver maintained an average speed of 100 kilometers per hour throughout the journey. However, it's important to note that this does not mean the driver was traveling at this speed the entire time. The average speed can be affected by various factors such as traffic conditions, stops, and changes in speed limits.In daily life, understanding average speed can help individuals plan their journeys more effectively. For example, if someone knows they need to travel 150 kilometers and they want to arrive at their destination in 2 hours, they can calculate the necessary average speed required:average speed = total distance / total time = 150 km / 2 hrs = 75 km/hr.This calculation indicates that in order to reach their destination on time, they must maintain a speed of at least 75 kilometers per hour.Moreover, average speed isn't limited to just vehicles; it applies to any scenario involving motion. Athletes, for example, often analyze their average speed during races to improve their performance. A runner completing a 10-kilometer race in 40 minutes would have an average speed of:average speed = total distance / total time = 10 km / (40/60) hrs = 15 km/hr.This information can help the runner set future goals and track improvements over time.In the realm of physics, the concept of average speed is foundational for understanding motion. It serves as a stepping stone to more complex ideas such as instantaneous speed and acceleration. Students learning about these concepts often start with average speed because it is straightforward and easy to grasp.Additionally, technology has made it easier than ever to calculate average speed. GPS devices and smartphone applications can track distance and time in real-time, providing users with immediate feedback on their speed. This has transformed how people approach travel and exercise, allowing them to make data-driven decisions.In conclusion, the term average speed encompasses a fundamental aspect of movement that is relevant across various fields and activities. Whether for planning a road trip, improving athletic performance, or studying physics, understanding average speed is essential. By mastering this concept, individuals can enhance their efficiency and effectiveness in their respective pursuits, ultimately leading to better time management and improved outcomes. Therefore, taking the time to comprehend and apply the principles of average speed can yield significant benefits in everyday life.

理解平均速度的概念对于任何参与涉及运动的活动的人来说都是至关重要的，无论是驾驶、骑自行车还是步行。术语平均速度指的是总行驶距离除以完成该距离所需的总时间。这个简单的公式可以提供关于一个人从一个点到另一个点的移动效率的宝贵见解。例如，考虑一次公路旅行，一个人开车行驶300公里，耗时3小时。要计算平均速度，需要使用公式：平均速度 = 总距离 / 总时间 = 300公里 / 3小时 = 100公里/小时。这意味着司机在整个旅程中保持了平均速度为每小时100公里。然而，重要的是要注意，这并不意味着司机在整个时间内都以这个速度行驶。平均速度可能会受到各种因素的影响，例如交通状况、停车和限速变化。在日常生活中，理解平均速度可以帮助个人更有效地规划他们的旅程。例如，如果某人知道他们需要行驶150公里，并且想要按时到达目的地，他们可以计算所需的平均速度：平均速度 = 总距离 / 总时间 = 150公里 / 2小时 = 75公里/小时。这个计算表明，为了准时到达目的地，他们必须保持至少75公里/小时的速度。此外，平均速度不仅限于车辆；它适用于任何涉及运动的场景。例如，运动员通常分析他们在比赛中的平均速度以提高表现。一个在40分钟内完成10公里比赛的跑者，其平均速度为：平均速度 = 总距离 / 总时间 = 10公里 / (40/60)小时 = 15公里/小时。这些信息可以帮助跑者设定未来的目标，并跟踪随时间的改善。在物理学领域，平均速度的概念是理解运动的基础。它作为更复杂的概念，如瞬时速度和加速度的基础。学习这些概念的学生通常从平均速度开始，因为它简单易懂。此外，科技使得计算平均速度变得比以往任何时候都容易。GPS设备和智能手机应用程序可以实时跟踪距离和时间，为用户提供即时的速度反馈。这改变了人们对旅行和锻炼的看法，使他们能够做出基于数据的决策。总之，术语平均速度涵盖了运动的一个基本方面，这在各个领域和活动中都是相关的。无论是为了规划公路旅行、提高运动表现还是学习物理，理解平均速度都是必不可少的。通过掌握这一概念，个人可以提高在各自追求中的效率和效果，最终实现更好的时间管理和改善结果。因此，花时间理解和应用平均速度的原理可以在日常生活中带来显著的好处。