In this episode, we cover the topic of work and energy. We’ll start off by talking about work, which includes the mathematical and conceptual definitions and the sign convention of work. We’ll also talk a little bit about mechanical advantage and also path dependency. Moving on to energy, we’ll talk about the general definition of energy, we’ll compare and contrast energy in work and the different types of energy that includes kinetic energy, potential energy, thermal energy, and total mechanical energy. Lastly, we’ll talk about energy transfer, specifically heat transfer, and the three types of convection, conduction, and radiation.
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Jump Into the Conversation:
00:00 Introduction
05:27 Summary: Limits of equation for work and force
08:39 Positive work: force and displacement in same direction
09:32 Comparison of mechanical and thermodynamic work sign conventions
12:50 Work changes kinetic energy of moving objects
16:32 Friction and energy
22:25 Pitching
27:10 Kinetic and potential energy relation
32:14 Sun and heat transfer