gold leaf electroscope

简明释义

金箔验电器

英英释义

例句

1.The teacher used a gold leaf electroscope to demonstrate static electricity in class.

老师用一个金箔电测仪在课堂上演示静电。

2.When charged, the leaves of the gold leaf electroscope diverged, indicating the presence of electric charge.

当被充电时，金箔电测仪的叶片分开，表明存在电荷。

3.Scientists often use a gold leaf electroscope to measure the strength of an electric field.

科学家们常常使用金箔电测仪来测量电场强度。

4.To test if an object is electrically charged, you can bring it near a gold leaf electroscope.

要测试一个物体是否带电，可以将其靠近一个金箔电测仪。

5.In physics experiments, a gold leaf electroscope is a simple device to visualize electrical charges.

在物理实验中，金箔电测仪是一个可视化电荷的简单装置。

作文

The gold leaf electroscope is a fascinating scientific instrument that has been used for centuries to detect electric charge. This device operates on the principles of electrostatics, which is the study of electric charges at rest. The gold leaf electroscope consists of a metal rod connected to two thin leaves of gold that are suspended within a glass container. When an electrically charged object is brought near the metal rod, it induces a charge in the rod and subsequently causes the gold leaves to repel each other due to like charges. This simple yet effective mechanism allows us to visually observe the presence of electric charge.Understanding how the gold leaf electroscope works can deepen our appreciation for the fundamental principles of electricity. When no charge is present, the gold leaves hang straight down, closely aligned with each other. However, once a charged object approaches the metal rod, electrons either flow into or out of the rod, depending on the type of charge of the object. If the object is positively charged, electrons from the gold leaves will be attracted to the object, leaving the leaves with a net positive charge. Conversely, if the object is negatively charged, electrons will be repelled, causing the leaves to gain a negative charge. The result is the same: the leaves will spread apart, indicating the presence of charge.The gold leaf electroscope serves not only as a tool for detection but also as an educational device. It provides a clear visual representation of abstract concepts, making it easier for students and enthusiasts to grasp the fundamentals of electricity and electrostatics. In classrooms, teachers often use the gold leaf electroscope to demonstrate basic principles such as charging by induction and conduction. These demonstrations help students understand how electric charges interact and the behavior of materials under different electrical conditions.Moreover, the gold leaf electroscope has historical significance. It was one of the first instruments that allowed scientists to explore and understand the nature of electricity. Invented in the late 18th century, it played a crucial role in the early studies of electrostatics. Pioneering scientists like Benjamin Franklin and Michael Faraday utilized the gold leaf electroscope to conduct experiments that laid the groundwork for modern electrical theory. This instrument not only helped in understanding electric forces but also inspired further technological advancements in the field of electricity.In conclusion, the gold leaf electroscope is more than just a scientific instrument; it is a bridge connecting past discoveries with modern knowledge. Its ability to visually demonstrate electric charge makes it a valuable tool in both educational settings and historical studies. By learning about the gold leaf electroscope, we gain insight into the principles of electrostatics and appreciate the journey of scientific discovery that has shaped our understanding of electricity today.

金叶电探测器是一种迷人的科学仪器，几个世纪以来一直用于检测电荷。该设备基于静电学的原理，即研究静止电荷的学科。金叶电探测器由一根金属杆和悬挂在玻璃容器内的两片薄金叶组成。当一个带电物体靠近金属杆时，它会在杆中感应出电荷，从而导致金叶由于同性电荷相互排斥而分开。这种简单而有效的机制使我们能够直观地观察到电荷的存在。理解金叶电探测器的工作原理可以加深我们对电力基本原理的理解。当没有电荷时，金叶会垂直向下悬挂，彼此紧密对齐。然而，一旦带电物体靠近金属杆，电子会根据物体电荷的类型流入或流出杆。如果物体带正电，金叶中的电子将被物体吸引，从而使金叶带有净正电荷。相反，如果物体带负电，电子将被排斥，导致金叶获得负电荷。结果是一样的：金叶会分开，表明电荷的存在。金叶电探测器不仅作为检测工具，还作为教育设备。它提供了抽象概念的清晰视觉表现，使学生和爱好者更容易掌握电力和静电学的基本原理。在课堂上，教师经常使用金叶电探测器演示如感应和传导充电等基本原理。这些演示帮助学生理解电荷如何相互作用以及材料在不同电气条件下的行为。此外，金叶电探测器具有历史意义。它是最早允许科学家探索和理解电力性质的仪器之一。发明于18世纪末，它在电静电的早期研究中发挥了关键作用。像本杰明·富兰克林和迈克尔·法拉第这样的开创性科学家利用金叶电探测器进行实验，为现代电理论奠定了基础。这种仪器不仅帮助理解电力作用，还激励了电力领域进一步的技术进步。总之，金叶电探测器不仅仅是一种科学仪器；它是连接过去发现与现代知识的桥梁。它能够直观地演示电荷，使其成为教育环境和历史研究中有价值的工具。通过学习金叶电探测器，我们深入了解静电学的原理，并欣赏塑造我们今天对电力理解的科学发现之旅。