# 2.8: Unit 2 Review


## Key Terms and Concepts

Scientific Method/Process
Law
Principle
Theory
Empirical model
Physical (mechanistic) Model
SI measurement units
Unit conversion factor
Order of magnitude estimation
Scientific notation
Metric prefix

## Unit 2 Learer Objectives [Corresponding Example Course Outcome #]

1. Describe the scientific method through an original example of how it could be applied to the student’s everyday life. [5]
2. Identify the differences and relationships between empirical models, physical models, hypotheses, theories, and laws. [5]
3. Find necessary conversion factors and convert between SI and non-standard units for several physical quantities. [1]
4. Perform order of magnitude estimation. [2]

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