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朱士維

物理學是描述世上質量與能量交互作用的學問,在這門課中我們將為大家介紹近代物理對於世界的認識。我們會從電磁學出發,進展到光學,並進而說明近代物理對人類觀念的突破。

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Syllabus

Week 1 靜電學:電荷與電場概念簡介
大家好,普通物理課程已經進入第一講,主題是「靜電學」。 在這門普通物理學課程中,除了介紹物理定律外,更希望強調的是生活上有哪些地方與這些物理概念有關,以及當初這些科學家是如何想到這樣的定律的。在這一講中,我們將從生活中以及歷史上的電現象開始,引入理論的思考,介紹電場和電位差的概念,以及庫侖定律與高斯定律等。希望讓大家看到科學家在想事情時,也多半是用非常直觀的類比想像。最後則談到電容這個儲電元件的原理,還有在生活中有哪些應用。 希望能激發大家的思考,以及對生活周圍更細緻的觀察。
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Week 2 會動的電荷:電流
歡迎進入普通物理課程第二週。第二講的主題是「電流」,上一講提到的是靜止的電荷,這一講中的電荷就開始活躍起來,會運動了。這一講中會介紹電流的發現過程,電阻的概念,以及相當坎坷的歐姆定律。有了電阻與電容,就可以開始做出很多有趣的電路,所以在這一講會介紹一些基本的電路分析概念。同時並用人體神經中的電信號傳導做範例,看看神經傳導如何用電路分析來思考。課程中引入相當多的示範實驗,儘量都用生活中的例子,希望能引起大家的興趣,並能對物理學如何與生活連結有更清楚的認識。
Week 3 神秘的磁場
第三講的主題是「磁場」,主要針對靜磁場的概念探討。 如同介紹靜電學時,遇到一個新的物理特性,我們將先從歷史上以及生活周圍可以觀察到的現象開始。接下來則是和各位探討當初科學家是如何觀察磁場與力的關係,並進而發現電與磁原來是一體的兩面,而有了安培定律以及法拉第感應定律來描述這個電磁相通的現象。最後則是從感應定律引出一個生活中常用的電路元件稱為電感,並和大家簡單說明可以儲存磁能的電感對電路系統的影響。
Week 4 電與磁的完美結合
第四講的主題是「電磁波」,這一講描述十九世紀下半葉,由馬克士威領軍,對人類理解世界的概念產生重大影響的過程,非常精彩。雖然會用稍微多一點數學,但是希望各位能夠從中間看出對稱性的美妙。以及能夠理解馬克士威如何透過對於數學形式的思考,發現電磁可以形成波動的概念。因此可以知道,數學真的是描述物理非常重要的語言。
Week 5 光學
第五講的主題是「光學」,光在生活中可說無處不在。 我們在這一講中,同樣從歷史與生活的角度出發,帶大家認識光與物質交互作用的各個不同面向,包括反射、折射、散射、偏振、干涉、繞射等。邀請大家一起感受光學的神奇世界。
Week 6 相對論
第六講的主題是「相對論」,這可以說是二十世紀物理學最重要的進展之一。承續著前一節的光學主題,我們從量光速的歷史進展出發,讓大家看到在十九世紀末,物理學所遭遇的困難(一朵烏雲)以及由此誕生的巨大概念轉折。 在這一講中,希望大家可以看到愛因斯坦在二十世紀初,是如何想到狹義相對論?為什麼說這幾乎是歷史的必然?相對論的內容,到底是什麼與什麼相對?為什麼說這是個違反直觀概念的理論?透過儘量深入淺出地描述,讓大家看到可說是世界上最出名的物理方程式 E = mc^2 到底和相對論有什麼關係?還有看起來這麼抽象的理論,和我們的生活真的有關係嗎?這些問題都希望各位可以在看完這一講後,獲得理解。
Week 7 量子的概念
第七講的主題則是「量子力學」,和相對論一起,構成所謂近代物理學的基石。很巧的是,量子力學的誕生,也和光的量測有很大的關係,包括黑體輻射和光電效應。 我們會先從說明何謂黑體輻射開始,讓大家理解二十世紀初物理學天空中的另一朵烏雲,並讓大家看到再一次看到科學家是如何先猜出完全違反直覺的答案,再慢慢透過各種實驗證明猜想的正確。在量子力學的世界中,我們將會介紹三個主要的概念,一是能量不連續,二是物質同時具有波動與粒子特性,三是測不準原理。最後並稍微簡單介紹目前我們對原子結構的理解。

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Explores a broad range of topics, including electromagnetism, optics, relativity, and quantum mechanics
Provides a comprehensive introduction to physics, suitable for beginners with little or no prior knowledge
Taught by experienced instructors who are passionate about physics and dedicated to teaching
Uses a variety of teaching methods, including lectures, demonstrations, and hands-on activities, to cater to different learning styles
May require additional study time and effort outside of class, especially for students with limited physics background
Covers a wide range of topics, but may not go into as much depth as some more specialized courses

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Reviews summary

Well-received physics course

This course received very positive reviews, receiving a perfect 5-star review from all students. These reviews indicate that the course is well-structured and easy to follow, with clear explanations of concepts. Students also found the instructor to be knowledgeable and engaging.

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in 普通物理學-電磁學、光學及近代物理 (General Physics (1)) with these activities:
Review diffusion
Refresh your understanding of diffusion, a fundamental concept in physics.
Browse courses on Diffusion
Show steps
  • Recall the definition of diffusion.
  • Describe the factors that affect diffusion rate.
  • Solve practice problems involving diffusion.
Read 'Introduction to Electrodynamics' by Griffiths
Enhance your understanding of electrodynamics by reading a classic textbook.
Show steps
  • Acquire the textbook.
  • Read and comprehend the chapters relevant to the course.
  • Take notes and highlight important concepts.
  • Complete the end-of-chapter exercises.
Discuss Ohm's law in a study group
Engage with peers to reinforce your understanding of Ohm's law through group discussions.
Browse courses on Ohm's Law
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  • Join or form a study group.
  • Review Ohm's law concepts prior to the session.
  • Actively participate in discussions.
  • Summarize key takeaways after the session.
Five other activities
Expand to see all activities and additional details
Show all eight activities
Build a simple electric circuit
Gain hands-on experience in building and analyzing electric circuits.
Browse courses on Electric Circuits
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  • Gather necessary materials, such as a battery, wires, and resistors.
  • Design a simple circuit diagram.
  • Assemble the circuit according to the diagram.
  • Measure and analyze the circuit's properties, such as voltage and current.
Solve circuit analysis problems
Hone your problem-solving skills by practicing circuit analysis problems.
Browse courses on Circuit Analysis
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  • Gather practice problems from textbooks or online resources.
  • Attempt to solve the problems independently.
  • Check your solutions against provided answer keys or consult with instructors.
  • Identify areas of difficulty and seek clarification.
Compile a collection of resources on special relativity
Gather and organize various resources to support your understanding of special relativity.
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  • Search for and identify relevant articles, videos, and websites.
  • Organize the resources into a coherent collection.
  • Create a bibliography or reference list.
  • Share the compilation with peers or instructors.
Create a visual representation of Maxwell's equations
Solidify your understanding of Maxwell's equations by creating a visual representation of them.
Browse courses on Maxwell's Equations
Show steps
  • Research and gather information on Maxwell's equations.
  • Choose a visual format, such as a diagram, infographic, or animation.
  • Develop a clear and concise representation of the equations.
  • Present your visual representation to peers or instructors for feedback.
Explore online tutorials on quantum mechanics
Expand your understanding of quantum mechanics through guided online tutorials.
Browse courses on Quantum Mechanics
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  • Identify reputable online platforms offering quantum mechanics tutorials.
  • Select tutorials that align with your learning goals.
  • Follow the tutorials, taking notes and actively engaging with the material.
  • Complete any practice exercises or assessments provided.

Career center

Learners who complete 普通物理學-電磁學、光學及近代物理 (General Physics (1)) will develop knowledge and skills that may be useful to these careers:
Data Scientist
A Data Scientist uses data to solve problems and make predictions. This course may be useful for learning about the principles of data science, which can help Data Scientists better understand the data they are working with and how to use it to solve problems.
Software Engineer
A Software Engineer designs, builds, and tests software systems. This course may be useful for learning about the principles of software engineering, which can help Software Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Computer Engineer
A Computer Engineer designs, builds, and tests computer systems. This course may be useful for learning about the principles of computer engineering, which can help Computer Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Chemical Engineer
A Chemical Engineer designs, builds, and tests chemical plants. This course may be useful for learning about the principles of chemical engineering, which can help Chemical Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Aerospace Engineer
An Aerospace Engineer designs, builds, and tests aircraft and spacecraft. This course may be useful for learning about the principles of aerospace engineering, which can help Aerospace Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Mechanical Engineer
A Mechanical Engineer designs, builds, and tests mechanical systems. This course may be useful for learning about the principles of mechanical engineering, which can help Mechanical Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Electrical Engineer
An Electrical Engineer designs, builds, and tests electrical systems. This course may be useful for learning about the principles of electrical engineering, which can help Electrical Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Optical Engineer
An Optical Engineer designs, builds, and tests optical systems. This course may be useful for learning about the principles of optical engineering, which can help Optical Engineers better understand the systems they are working with and how to design them to meet specific requirements.
Materials Scientist
A Materials Scientist develops new materials for use in a variety of applications. This course may be useful for learning about the principles of materials science, which can help Materials Scientists better understand the properties of materials and how to use them to create new products.
Nuclear Engineer
A Nuclear Engineer designs, builds, and operates nuclear power plants. This course may be useful for learning about the principles of nuclear engineering, which can help Nuclear Engineers better understand the systems they are working with and how to operate them safely.
Radiation Therapist
A Radiation Therapist uses radiation to treat cancer. This course may be useful for learning about the principles of radiation therapy, which can help Radiation Therapists better understand the equipment they are using and how to use it to treat cancer patients.
Medical Physicist
A Medical Physicist uses physics to improve the diagnosis and treatment of diseases. This course may be useful for learning about the principles of medical physics, which can help Medical Physicists better understand the equipment they are using and how to use it to improve patient care.
Health Physicist
A Health Physicist protects people from the harmful effects of radiation. This course may be useful for learning about the principles of radiation physics, which can help Health Physicists better understand the risks associated with radiation and how to protect people from those risks.
Nuclear Medicine Technologist
A Nuclear Medicine Technologist uses radioactive substances to diagnose and treat diseases. This course may be useful for learning about the principles of nuclear medicine, which can help Nuclear Medicine Technologists better understand the procedures they are performing.
Radiologist
A Radiologist uses medical imaging to diagnose and treat diseases and injuries. This course may be useful for learning about the principles of medical imaging, which can help Radiologists better understand the images they are using to make diagnoses.

Reading list

We've selected 12 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in 普通物理學-電磁學、光學及近代物理 (General Physics (1)).
These classic lectures provide a clear and engaging introduction to physics, including electricity, magnetism, and optics.
This classic textbook provides a comprehensive treatment of electricity and magnetism.
Covers a wider range of topics than the course, including mechanics, waves, and thermodynamics, but it also covers electricity, magnetism, optics, and modern physics.
Provides a comprehensive treatment of statistical physics, including thermodynamics, kinetic theory, and quantum statistics.
Provides a more in-depth treatment of modern physics topics, such as quantum mechanics and nuclear physics.
Provides a comprehensive treatment of solid state physics, including crystal structure, electronic properties, and thermal properties.

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