What Is a Derived Unit? – Definition and Examples - Science …
网页2021年8月29日 · A derived unit is a unit of measurement in the International System of Units (SI) that is derived from one or more of the seven base units. Derived units are either dimensionless or else are the product of base units.
SI derived unit - Wikipedia
网页SI derived units are units of measurement derived from the seven SI base units specified by the International System of Units (SI). They can be expressed as a product (or ratio) of one or more of the base units, possibly scaled by an appropriate power of exponentiation (see: Buckingham π theorem).
Essentials of the SI: Base & derived units - NIST
网页SI derived units. Other quantities, called derived quantities, are defined in terms of the seven base quantities via a system of quantity equations. The SI derived units for these derived quantities are obtained from these equations and the seven SI base units.
3.1: Base Units and Derived Units - Chemistry LibreTexts
网页2023年12月13日 · It is important to understand, however, that all of these can be expressed in terms of the SI base units; they are consequently known as derived units. In fact, most physical quantities can be expressed in terms of one or more of the following five fundamental units: mass (M) length (L) time (T) electric charge (Q) temperature (Θ theta)
3.10: Derived Units - Chemistry LibreTexts
网页2022年9月20日 · A derived unit is a unit that results from a mathematical combination of SI base units. Calculations involving derived units follow the same principles as other unit conversion calculations.
导出单位 - 百度百科
网页导出单位 (derived unit)是由 基本单位 通过定义、定律或一定的关系式推导出来的单位。 导出单位具有专门名称和符号。 例如在 国际单位制 中，力为导出单位，其名称为牛 [顿]，符号为N。 能为导出单位，其名称为焦 [耳]，符号为J。 中文名. 导出单位. 外文名. derived unit. 所属学科. 数学. 相关概念. 基本单位，国际单位制等. 简 介. 用基本单位表示的单位. 定 义. 数学概念. 目录. 1 基本介绍. 2 基本单位定义. 3 导出单位定义. 4 单位制. 5 国际单位制. 基本介 …
SI Units | NIST - National Institute of Standards and Technology
网页2010年4月12日 · The SI is made up of 7 base units that define the 22 derived units with special names and symbols, which are illustrated in NIST SP 1247, SI Base Units Relationship Poster. The SI plays an essential role in international commerce and is commonly used in scientific and technological research and development.
What Is a Derived Unit in Chemistry? - ThoughtCo
网页2019年12月4日 · In chemistry, a derived unit is an SI unit of measurement derived as a product of one or more of the seven base units. For example, the SI unit of force is the derived unit newton (N): One newton is equal to 1 m·kg/s 2 .
1.3: Units and Standards - Physics LibreTexts
网页2022年9月12日 · Each of these physical quantities is then known as a derived quantity and each unit is called a derived unit. The choice of base quantities is somewhat arbitrary, as long as they are independent of each other and all …
Foundation Physics: Units of Measurement Part 2 – Derived Units
网页This video examines derived units and considers how they are determined from the SI base units.Presented by Dr Daniel Belton, University Teaching Fellow, Uni...