Learning Objectives (See related pages) After completing this chapter, you should be able to 1. Describe a simple machine and its operation in general terms to the extent that efficiency and conservation of energy are explained. 2. Write and apply formulas for computing the efficiency of a simple machine in terms of work or power. 3. Distinguish by definition and example between ideal mechanical advantage and actual mechanical advantage. 4. Draw a diagram of each of the following simple machines and beside each diagram, write a formula for computing the ideal mechanical advantage: (a) lever, (b) inclined plane, (c) wedge, (d) gears, (e) pulley systems, (f) wheel and axle, (g) screw jack, (h) belt drive. 5. Compute the mechanical advantage and the efficiency of each of the simple machines listed in the previous objective.
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