derived unit

简明释义

导出单位

英英释义

例句

1.In physics, a meter per second is a derived unit 导出单位 used to measure speed.

在物理学中，米每秒是一个 derived unit 导出单位 用于测量速度。

2.Pressure is often expressed in pascals, which is a derived unit 导出单位 based on force and area.

压力通常用帕斯卡表示，这是一个基于力和面积的 derived unit 导出单位 。

3.The liter is a derived unit 导出单位 for measuring volume, commonly used in cooking.

升是一个 derived unit 导出单位 用于测量体积，常用于烹饪。

4.Electric charge is measured in coulombs, a derived unit 导出单位 in electrical engineering.

电荷以库仑为单位测量，这是电气工程中的一个 derived unit 导出单位 。

5.The joule is a derived unit 导出单位 of energy in the International System of Units (SI).

焦耳是国际单位制(SI)中的一个 derived unit 导出单位 能量单位。

作文

In the field of science and engineering, measurements play a crucial role in understanding the world around us. One important concept in this realm is the idea of a derived unit, which refers to a unit of measurement that is derived from the fundamental units defined by the International System of Units (SI). These fundamental units include measurements such as meters for length, kilograms for mass, and seconds for time. By combining these basic units, we can create a variety of other units that are essential for more complex measurements. For instance, the unit of speed is meters per second (m/s), which is a derived unit because it combines the fundamental units of length and time.Derived units allow scientists and engineers to express a wide range of physical quantities in a standardized way. For example, the unit of force is the newton (N), which is defined as one kilogram meter per second squared (kg·m/s²). This relationship illustrates how derived units can be constructed from fundamental units to describe specific phenomena. Similarly, pressure is measured in pascals (Pa), where one pascal is equal to one newton per square meter (N/m²). Such definitions highlight the importance of derived units in various scientific disciplines, including physics, chemistry, and engineering.Understanding derived units is essential for anyone involved in technical fields. It allows professionals to communicate measurements effectively and ensures consistency across different studies and applications. For example, when discussing the density of a substance, we often use grams per cubic centimeter (g/cm³) as a derived unit. This unit is derived from mass (grams) and volume (cubic centimeters), providing a clear picture of how much mass is contained within a given volume. Without derived units, expressing such relationships would be cumbersome and prone to confusion.Moreover, derived units are not just limited to the scientific community; they permeate everyday life as well. Consider the unit of energy, the joule (J), which is defined as one newton meter (N·m). This derived unit is commonly used in various contexts, from calculating the energy consumption of household appliances to understanding the energy output of engines. The ability to use derived units effectively enhances our understanding of energy transfer and consumption in daily activities.In conclusion, the concept of derived units is foundational in the world of measurements and has far-reaching implications in both scientific and practical applications. By deriving new units from established fundamental units, we can express a vast array of physical phenomena in a coherent and standardized manner. As we continue to explore and understand the complexities of the universe, the importance of derived units will only grow, reinforcing their role as a critical component of scientific literacy and communication. Therefore, mastering the concept of derived units is not only beneficial for those in technical fields but also for anyone who seeks to engage with the scientific aspects of our world.

在科学和工程领域，测量在理解我们周围的世界中发挥着至关重要的作用。一个重要的概念是派生单位，它指的是一种测量单位，它是从国际单位制（SI）定义的基本单位中派生出来的。这些基本单位包括长度的米、质量的千克和时间的秒等测量单位。通过组合这些基本单位，我们可以创建许多其他单位，这些单位对于更复杂的测量至关重要。例如，速度的单位是米每秒（m/s），这是一个派生单位，因为它结合了长度和时间的基本单位。派生单位使科学家和工程师能够以标准化的方式表达广泛的物理量。例如，力的单位是牛顿（N），它被定义为每秒平方千克米（kg·m/s²）。这个关系说明了如何从基本单位构建派生单位来描述特定现象。类似地，压力以帕斯卡（Pa）为单位，其中一个帕斯卡等于每平方米一个牛顿（N/m²）。这样的定义突显了派生单位在物理学、化学和工程等各种科学学科中的重要性。理解派生单位对于任何参与技术领域的人都是至关重要的。它使专业人士能够有效地交流测量，确保不同研究和应用之间的一致性。例如，在讨论物质的密度时，我们通常使用克每立方厘米（g/cm³）作为派生单位。这个单位是由质量（克）和体积（立方厘米）派生而来的，清晰地描绘了给定体积内包含多少质量。如果没有派生单位，表达这种关系将会很繁琐且容易引起混淆。此外，派生单位不仅限于科学界；它们也渗透到日常生活中。考虑能量的单位，焦耳（J），它被定义为每米牛顿（N·m）。这个派生单位在各种上下文中被广泛使用，从计算家用电器的能耗到了解发动机的能量输出。有效使用派生单位的能力增强了我们对日常活动中能量转移和消耗的理解。总之，派生单位的概念在测量的世界中是基础性的，对科学和实际应用都有深远的影响。通过从已建立的基本单位中派生出新单位，我们可以以一致和标准化的方式表达广泛的物理现象。随着我们继续探索和理解宇宙的复杂性，派生单位的重要性只会增加，强化其作为科学素养和交流的关键组成部分的角色。因此，掌握派生单位的概念不仅对技术领域的人有益，也对任何希望与我们世界的科学方面互动的人有益。