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A physical model is a model where the physics of some thing are used to represent
the thing. The thing is usually either a static object, such as a bolt or house, or
a system, such as an automobile part or a musical instrument. A physical model has many uses because
the physical description is specific:
- The description is so specific that the physics may be simulated by
a computer.
- The simulated behavior and actual measured behavior may be compared to
determine how accurate the model is. This is known as model validation and
aids in verifying understanding of the thing's physics.
- Simpler models yield insight into the modeled thing because they may be
easily understood.
- More detailed models may be harder to understand, but they should more
accurately model the thing's characteristics.
Once the model has been validated, additional insight into the modeled thing
may be obtained by asking ``What if?'' questions. For example, consider
the following:
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