Intro Thermodynamics, Waves & Magnetism in Physics
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- เผยแพร่เมื่อ 6 ก.พ. 2025
- In this introductory video, we start on a fascinating journey into the realm of physics, with a special focus on heat, thermodynamics, entropy, and waves. Join us as we explore the fundamental principles that govern these diverse phenomena and gain a deeper understanding of their implications in the natural world.
Through clear explanations and illustrative examples, we demystify the concepts of heat and thermodynamics, discussing how energy flows and transforms within systems, and how heat transfer mechanisms such as conduction, convection, and radiation shape our environment. From the laws of thermodynamics to the principles of entropy and energy conservation, we'll explore the underlying principles that govern the behavior of matter and energy.
Moreover, we'll delve into the fascinating world of waves, discussing how they propagate through different mediums and carry energy and information. From sound waves to electromagnetic waves, we'll examine the properties and behaviors of waves, including wavelength, frequency, and amplitude, and explore their role in various physical phenomena.
Additionally, we'll discuss the concept of entropy, exploring how it relates to the organization and disorder of systems, and how it influences the direction of natural processes. We'll examine the second law of thermodynamics and discuss its implications for understanding the behavior of complex systems in the universe.
Whether you're a student of physics, a science enthusiast, or simply curious about the fundamental principles of the universe, this video offers a captivating introduction to the concepts of heat, thermodynamics, entropy, and waves. Join us as we unravel the mysteries of the physical world and gain a deeper appreciation for the elegant laws that govern its behavior.
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00:00 📚 Introduction to Physics & Course Overview
01:01 ⚡ Waves & Their Importance in Physics
02:11 🌊 Wave Interference & Types of Waves
04:02 🔊 Sound Waves & Their Properties
07:20 👂 Noise Cancellation & Doppler Shift
08:45 🚂 Doppler Shift in Sound Waves
09:51 ✨ Doppler Shift in Light Waves
10:19 🌊 Types of Waves
10:33 ❄ Thermodynamics
11:30 🔍 Understanding Heat
12:10 ⚖ Temperature & Pressure
13:06 🔩 Harnessing Energy
14:14 🔄 Engines & Refrigerators
15:23 📚 Laws of Thermodynamics
15:37 🌀 Entropy
17:28 ⚖ Entropy & Disorder
19:41 ☕ Examples of Entropy Increase
22:16 ❄ Irreversibility of Entropy
24:21 ⚗ Connection to Quantum Mechanics
24:48 ⚡ Introduction to Electric & Magnetic Fields
26:11 🌐 Electric & Magnetic Fields
27:07 💡 Electric Field Basics
29:22 🔋 Magnetic Field Basics
31:43 🔄 Electric & Magnetic Field Differences
32:39 🌀 Field Interactions
34:03 📝 Maxwell's Equations
35:30 📝 Maxwell's Equations Overview
36:26 📝 Intuitive Explanation of Maxwell's Equations
38:31 📝 Vector Derivative in Maxwell's Equations
40:07 📝 Electromagnetic Waves
41:03 📝 Outward Flow of Electric Field
42:13 📝 Electric Field Generated by Charges
43:26 📝 Outward Flow of Magnetic Field
44:10 🔋 Magnetic fields form closed loops.
45:07 🔄 The curl of an electric field.
46:45 ⚡ Electric fields are caused by changing magnetic fields.
47:27 🌀 Magnetic fields are caused by changing electric fields & electric currents.
50:31 🌊 Electromagnetic waves.
51:41 🔗 Coupling between electric & magnetic fields.
52:09 📈 Visualizing electromagnetic waves.
53:43 ⚡ Electromagnetic Waves
54:54 📚 Topics in Physics
55:22 🕰 Relativity Theory
55:51 ⚖ Quantum Mechanics
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53:26
LOL That gets me too. It seems like the two fields should be 90 degrees out of phase, but every time I bring that up, a physicist somewhere wants to argue with me. They say it's something about the change in the one being proportional to the curl and not the intensity of the other. It doesn't seem to make much sense. If one of them could explain to me how an in phase wave is received as an out of phase signal by an antenna, maybe I'd get it.
3:42
Those are transverse waves. The kinetic energy of the mass moves *transverse* to ( or across ) the direction of propagation.
Pressure waves are longitudinal. The kinetic energy of the mass travels *along* the direction of propagation.
Nice 👍
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Alternately rapidly heating and cooling a bimetallic rod in a perpendicular magnetic field might produce an electric current from end to end. Such as an enhanced bimetallic strip.
So electric particles are release and magnetic particles are trap?
How about more on Zero point energy?
physics is exercised and 'disovered' movement; real physics is unknown to us
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Can anyone plz give me links to other videos by him
Where is the first video I can't find it?
01 - Introduction to Physics, Part 1 (Force, Motion & Energy) - Online Physics Course
th-cam.com/video/i_CijGuk7fw/w-d-xo.html