joules

简明释义

英[ˈdʒuːlz]美[ˈdʒoʊlz]

n. 焦耳（joule 的复数）

n. （Joules）人名；（英）焦耳斯

英英释义

单词用法

同义词

反义词

例句

1.So for every photon we have 2.84 times 10 to the -19 joules.

每一个光子有，2,84乘以10的- 19次方焦耳。

2.That is about 100 joules per second that you radiate 100 watts.

你每秒钟大约辐射，100焦耳——100瓦。

3.Compare that with your body, which generates a hundred joules per second every second 100 watts.

这和你的人体相比较，人体每秒发出一百焦耳，每秒100瓦。

4.However, if you climb a mountain 5,000 feet and you do that, then the work you have to do is a million joules.

然而如果你爬山，5000英尺的山，你爬上去，那你做的功是一百万焦耳。

5.Gasoline produces per gallon something like close to a hundred million joules.

每加仑汽油大约产生，一亿焦耳热量。

6.4 times 10 to the negative 19 joules.

4乘以10的负19次方。

7.Probably shave six, seven times, so that's a total of 100,000 joules that's not bad out of a battery.

可能要刮六七次，那总共是100000焦耳，那不错了，对于一块电池来说。

8.A calorie is equivalent to approximately 4.184 joules (焦耳).

一个卡路里大约等于4.184焦耳（joules）。

9.The energy consumed by the light bulb is measured in joules (焦耳) per hour.

这个灯泡消耗的能量以每小时焦耳（joules）来测量。

10.When you lift an object, you do work equal to the weight of the object times the height, measured in joules (焦耳).

当你抬起一个物体时，你所做的功等于物体的重量乘以高度，以焦耳（joules）为单位。

11.The potential energy stored in a compressed spring is expressed in joules (焦耳).

压缩弹簧中储存的势能以焦耳（joules）表示。

12.The kinetic energy of a moving car can be calculated in joules (焦耳).

一辆移动汽车的动能可以用焦耳（joules）来计算。

作文

The concept of energy is fundamental to our understanding of the physical world. One of the most common units used to measure energy is the joules, which is a standard unit in the International System of Units (SI). The joules is defined as the amount of energy transferred when a force of one newton is applied over a distance of one meter. This simple definition encapsulates the essence of work and energy transfer in physics. Understanding joules is crucial for students and professionals in fields such as physics, engineering, and environmental science. For instance, when we consider the energy consumption of household appliances, we often refer to their energy use in joules. A typical light bulb may consume about 60 watts of power, which translates to 60 joules per second. Over the course of an hour, this amounts to 216,000 joules of energy consumed. In addition to electrical appliances, joules are also used to describe energy in various contexts, such as thermal energy, mechanical energy, and even chemical energy. For example, when burning fuels, the energy released is often measured in joules. The combustion of one mole of glucose releases approximately 2800 joules of energy, which is essential for biological processes in living organisms. Moreover, the importance of joules extends beyond just measurements; it plays a vital role in understanding energy efficiency and conservation. As global awareness of climate change increases, the need for renewable energy sources has become more pressing. By measuring the energy output of solar panels or wind turbines in joules, we can evaluate their effectiveness and make informed decisions about energy production. In sports science, joules can be used to quantify the energy expenditure of athletes. For instance, during a sprint, a sprinter may burn around 1000 joules of energy in just a few seconds. Understanding these energy dynamics helps coaches and trainers optimize training regimens for peak performance. Furthermore, the conversion of energy from one form to another often involves joules. For example, when a car accelerates, the chemical energy stored in fuel is converted into kinetic energy, measured in joules. This conversion process is critical for engineers who design efficient vehicles and strive to reduce fuel consumption. In conclusion, the joules is not just a unit of measurement but a fundamental concept that permeates various aspects of science and daily life. From understanding energy consumption in our homes to optimizing athletic performance and addressing global energy challenges, the significance of joules cannot be overstated. As we continue to explore and innovate in the realm of energy, a solid grasp of joules will undoubtedly enhance our ability to make informed decisions and contribute to a sustainable future.

能量的概念是我们理解物理世界的基础。一个常用的测量能量的单位是焦耳，这是国际单位制（SI）中的标准单位。焦耳被定义为当一个牛顿的力作用在一个距离为一米的物体上时所转移的能量。这一定义简洁地概括了物理学中工作的本质和能量转移。理解焦耳对物理、工程和环境科学等领域的学生和专业人士至关重要。例如，当我们考虑家庭电器的能耗时，我们通常用焦耳来表示它们的能量使用。一个典型的灯泡可能消耗大约60瓦特的功率，这相当于每秒60焦耳。在一小时内，这就意味着消耗了216,000焦耳的能量。除了电器，焦耳还用于描述各种背景下的能量，例如热能、机械能甚至化学能。例如，燃烧燃料时释放的能量通常以焦耳为单位进行测量。燃烧一摩尔葡萄糖大约释放2800焦耳的能量，这对生物体内的生物过程至关重要。此外，焦耳的重要性不仅限于测量；它在理解能效和节能方面也起着至关重要的作用。随着全球对气候变化的关注加剧，对可再生能源的需求变得更加紧迫。通过以焦耳为单位测量太阳能电池板或风力涡轮机的能量输出，我们可以评估它们的有效性，并就能源生产做出明智的决策。在运动科学中，焦耳可以用来量化运动员的能量消耗。例如，在短跑比赛中，运动员在几秒钟内可能会消耗约1000焦耳的能量。了解这些能量动态有助于教练和训练师优化训练方案，以达到最佳表现。此外，能量从一种形式转换为另一种形式时，通常涉及到焦耳。例如，当汽车加速时，储存在燃料中的化学能转化为动能，以焦耳为单位进行测量。这一转换过程对设计高效车辆并努力减少燃料消耗的工程师至关重要。总之，焦耳不仅仅是一个测量单位，而是一个渗透到科学和日常生活各个方面的基本概念。从理解我们家庭的能量消耗到优化运动表现，以及应对全球能源挑战，焦耳的重要性不容小觑。随着我们在能源领域的不断探索和创新，扎实掌握焦耳无疑将增强我们做出明智决策的能力，并为可持续未来贡献力量。