June 2026
Beginner to intermediate
334 pages
8h 54m
English
Content preview from Make: Physics
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Chapter 9. Work, Energy, and Power
To this point, we have mostly talked about energy in the context of mechanical energy: moving objects, potential energy converting to kinetic energy as something falls, and so on. However, energy comes in many other forms as well, many of them involving heat moving around in various ways. Why is this in a mechanics physics book? Many mechanical systems are powered by converting other forms of energy into movement.
In this chapter, we expand upon physics concepts of work and energy that we introduced in Chapter 6, and add the idea of power, which is work done over a period of time. In particular, we build on the principle of conservation of energy to understand practical systems that need to convert one kind ...
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