The New Way Things Work Short Essay - Answer Key

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1. What does the principle of the conservation of energy state? How does Part 1 relate to that principle?

The principle of the conservation of energy states that energy is neither created nor destroyed. The Mechanics of Movement explores this principle as it plays into movement, force, and effort.

2. Discuss what happens when a driving force initiates movement.

When a driving force initiates movement, a machine can then convert that movement into a force appropriate for the task at hand. The force, neither created nor destroyed, may be concentrated or dispersed by the movement to result in a greater or lesser force.

3. Upon what law of physics are the simple machines that are introduced in Part 1 governed?

The simple machines introduced in Part 1 are governed by a law of physics which states that work is composed of the effort you put in and the distance over which the effort is done.

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