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The joule is said to be a derived unit, in that it is obtained from the base units kilograms, meters, and seconds. It can be regarded as a newton-meter — a force of 1 newton exerted over a distance of 1 meter (3.3 feet). Since the newton is itself a derived unit, a joule can...
The unit of pressure is___. A. newton B. pascal C. joule D. watt 相关知识点: 试题来源: 解析 B。压强的单位是帕斯卡(pascal)。newton 是牛顿,力的单位;joule 是焦耳,能量单位;watt 是瓦特,功率单位。本题考查物理单位的英语表达及辨析,根据物理知识可知压强单位是帕斯卡。反馈...
Which of the following is a unit of force? A. Joule B. Newton C. Watt D. Ampere 相关知识点: 试题来源: 解析 B。本题考查力的单位。Newton(牛顿)是力的单位。选项 A Joule(焦耳)是能量的单位;选项 C Watt(瓦特)是功率的单位;选项 D Ampere(安培)是电流的单位。
As the time it takes to do one unit of work 相关知识点: 试题来源: 解析 B。焦耳(Joule)的定义是:当一个 1 牛顿的力作用在物体上,使物体在力的方向上移动 1 米所做的功。选项 A 描述不准确;选项 C 是功率的相关描述;选项 D 不符合焦耳的定义。反馈 收藏 ...
百度试题 结果1 题目The unit of energy is ___. A. newton B. joule C. watt D. ampere 相关知识点: 试题来源: 解析 B。能量的单位是焦耳(joule)。牛顿(newton)是力的单位,瓦特(watt)是功率单位,安培(ampere)是电流单位。反馈 收藏
The unit of length is ___. A. gram B. liter C. meter D. joule 相关知识点: 试题来源: 解析 C。长度的单位是米(meter),A 选项 gram 是克,是质量的单位;B 选项 liter 是升,是体积的单位;D 选项 joule 是焦耳,是能量的单位。反馈 收藏 ...
百度试题 结果1 题目The SI unit for work is the ___. A. joule B. newton C. pascal D. watt 相关知识点: 试题来源: 解析 A 反馈 收藏
What is the smallest living unit? What are the main units of length in the U.S? What is the basic sequence stratigraphic unit? What unit is used for angular size? Define what a joule is. What is the conversion of 22.50gal/min to L/s?
James Joule.Henry Roscoe/Wikimedia Commons/Public Domain The joule (symbol: J) is the basicSI unitofenergy. A joule is equal to thekinetic energyof a kilogrammassmovingat the speedof one meter per second (one joule is a kg⋅m2⋅s−2). Alternatively, it is the amount of work done...