Heat Transfer - Conduction, Convection, and Radiation

This physics video tutorial provides a basic introduction into heat transfer. It explains the difference between conduction, convection, and radiation. Conduction occurs when heat transfers from one material to another by direct contact. Touching a hot stove is an example of heat conduction. Heat flows from a region of high temperature to a region of low temperature or from hot to cold. Materials such as metals and diamond conduct heat very well. Wood and fiberglass do not conduct heat very well and are called insulators. still air is an insulator. Convection occurs when heat is transferred through a fluid in motion such as moving water or a wind. Hot air rises and cold air descends due to difference in density. Cold air is heavier than hot air. The last method of heat transfer is radiation. Heat from the sun travels through empty space by means of electromagnetic waves such as infrared, UV light, and visible light. Physics Video Lessons: https://www.video-tutor.net/physics.html _______________________________ Linear Expansion of Solids: https://www.youtube.com/watch?v=dWzX3hBYxdk Temperature Conversions: https://www.youtube.com/watch?v=6qiYcyhI158 Thermal Stress and Strain: https://www.youtube.com/watch?v=FwOsoeOvZzo Heat Energy - Unit Conversions: https://www.youtube.com/watch?v=Pwr_yzR4kA4 Molar Heat Capacity: https://www.youtube.com/watch?v=Vr3FJLxpdrU Calorimetry Problems: https://www.youtube.com/watch?v=BGcDUybbTW0 _______________________________ Specific Heat Capacity Problems: https://www.youtube.com/watch?v=ePm_N6RgLfk Final Temperature Calorimetry Problems: https://www.youtube.com/watch?v=lxMwyxvSqgk Latent Heat of Fusion and Vaporization: https://www.youtube.com/watch?v=dxtz2POUTJE Heat Current and Temperature Gradient: https://www.youtube.com/watch?v=62nNz3mFr6U Thermal Conductivity and Stefan Boltzmann's Law: https://www.youtube.com/watch?v=LR5bYxC4syI ______________________________ Boyle's Law Practice Problems: https://www.youtube.com/watch?v=v8r_AU_TlPg How Does a Bike Pump Work? https://www.youtube.com/watch?v=I0b_i6-HLBA Charles Law: https://www.youtube.com/watch?v=uZ2d79NFx2w Gay Lussac's Law: https://www.youtube.com/watch?v=RszgzH_2A9k Final Exams and Video Playlists: https://www.video-tutor.net/ Physics PDF Worksheets: https://www.video-tutor.net/physics-basic-introduction.html