Objectives
1. Distinguish between a scientific model and a scientific theory.
2. why experiments are important
3. Explain why uncertainty is present in all measurements
4. Calculate the percent uncertainty in a measurement.
5. State the SI units of mass, length, and time.
6. State the metric (SI) prefixes (multipliers)
7. Distinguish between basic quantities and derived quantities as well as basic units and derived units.
8. a number in power of ten notation .
9. an order‑of‑magnitude estimate
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