Heat
The Transfer and Flow of Energy

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Heat Transfer
Analyze heat flow, which involves three important heat-transfer mechanisms: conduction, which results from direct molecular contact; convection, involving the bulk motion of a fluid; and radiation, which transfers energy by electromagnetic waves. Study examples of heat flow in buildings and in the sun's interior.
Physics Demonstrations in Heat: Part II
Part of the Series: Physics Demonstrations in Heat
Concepts Covered:
  • Thermal Conduction: Propagation in a Metal Rod
  • Thermal Conduction: Comparison of Heat Transfer in Two Materials
  • Thermal Convection: Induced Fluid Flow
  • Thermal Convection: Projection of Convection Currents
  • Thermal Radiation: Focused Transmission Using Parabolic Mirrors
  • Thermal Radiation: Black Body Effects
  • Thermal Radiation: Leslie's Cube
  • Heat Transfer: Boiling Inferno
The Science of Energy - Resources and Power Explained
Energy is, without a doubt, the very foundation of the universe. It's the engine that powers life and fuels the evolution of human civilization. Yet for all its importance, what energy really is and how it works remains a mystery to most non-scientists. For example:
  • Where does most of…
Heat Transfer by Convection, Radiation & Conduction
This program covers the important topic of heat transfer by conduction, convection, and radiation in Physics. We begin by discussing the how energy is transferred from an object using these three primary mechanisms and how they might be observed in everyday life. The entire lesson is taught by working example…
Heat and Work
The first law of thermodynamics relates the internal energy of a system to the exchange of heat and mechanical work. Focus on isothermal (constant temperature) and adiabatic (no heat flow) processes, and see how they apply to diesel engines and the atmosphere.
Chemical Energy, Biomass, and Photosynthesis
Episode 5 of The Science of Energy
Turn now to chemical energy, the potential energy resulting from the position of atoms within molecules. After an overview of photosynthesis (perhaps the universe's most amazing form of energy conversion), learn how combustion transforms biofuels into light and heat, and how energy density affects the transportation of biofuels like petroleum.
Geothermal Energy
Episode 18 of The Science of Energy
Go deep underground for a look at geothermal energy. Topics include the energy budget of our planet, two main ways of using geothermal energy, five different technologies used for hydrothermal power systems (including dry steam power plants), and the concept of shallow ground source heat pumps (GSHPs).
An Introduction to Equilibrium Problems
You use your basic understanding of equilibrium systems to try to solve some problems. You tackle two kinds of equilibrium problems: ones in which you are asked to calculate the equilibrium constant for an equation, and ones in which you are asked to find the equilibrium concentration of a reactant…
Wind Power and Electricity
Episode 15 of The Science of Energy
Wind power is another growing source of renewable energy. First, discover how giant wind turbines provide us with energy. Then, get a brief history of how humans have tapped into wind's potential and the meteorology of how wind works. Finally, learn the best regions for wind power and the advantages…
Stoichiometry Problems
You extend your study of stoichiometry to consider more complex problems involving volume, molecules, and energy.
Energy - Forms and Conversion for Use
Episode 2 of The Science of Energy
Energy is a fundamental part of our universe--in a sense, the universe is energy. Here, Professor Wysession introduces you to the many fascinating forms energy takes, including potential, kinetic, mechanical, and thermal energy. He also explains how energy is measured to make you more fluent in "energy-speak" for the coming…
Writing and Balancing Chemical Equations
What happens when you combine two or more elements? Through a variety of practice problems, you learn to identify when a chemical reaction has occurred, how to write chemical equations, and how to "balance" equations to conserve the atoms.