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所在平台: Udemy |
课程主页: https://www.udemy.com/course/work-and-mechanical-energy/
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课程名称：工作与机械能 概述：能量是人类日常生活中不可或缺的部分。从起床、喝咖啡，到带宠物散步，这些日常活动都显示出能量在推动我们生活中的重要性。本课程将探讨多种能量类型（如重力势能、弹性势能、动能等），这些能量在物理学中归类为机械能，即由于物体的位置或运动而存在的能量。在我们进行被称为“工作”的活动时，会看到机械能的实际应用。然而，物理学的理念与普通人的理解并不完全一致，存在一些情况在物理学中被认为没有完成“工作”。课程第三部分将列出几个例子来说明这些情况。此外，课程中段将以更明确的方式量化所做工作的量，涉及力-位移图的应用原则。本课程将分析工作与机械能之间的联系，它们是物理学中的关键概念。每个部分都包含回顾问题，以测试您对所学内容的理解。课程讨论主要围绕 GCSE 和 IGCSE 课程展开。
Energy is a vital part of the daily routines of humans. Getting up from bed, taking a cup of coffee, going for a walk with your pet and a couple of other activities you engage in during the day shows us of how energy is needed to drive our daily enterprise. As you might know that there are quite a number of energy types(gravitational potential, elastic, kinetic, potential etc) which in physics and as well as this course are classified under Mechanical Energy i.e the energy resident in object by virtue of their position or motion. As consequent to the previous statement we see mechanical energy in action whenever we carry out activities which is termed Work to a non-physicists. However, the Physics ideology is not in total agreement with the latter stating cases where work is assumed to be done and well in physics, it isn't. Three of those cases are stated in the third section with relatable examples. In-addition, a more definite way of quantifying the amount of work done is treated in mid-section of the course with questions relevant to the application of the principles guiding force-displacement graphs. This course examines the link between the concept of work and mechanical energy as they are one of the key concepts in physics. Review questions which intend to test your knowledge on what you've learnt in each section is included. The GCSE and IGCSE Curriculum drives the major discussion through-out each section.
