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How Science Works · Method

Measurement, Units & Error

Every measurement is a number, a unit and an uncertainty. SI units, unit conversion by multiplying by one, significant figures, and the difference between accuracy and precision.

30 min · 6 steps · videoJump to quiz ↓
4. What's Significant in Laboratory Measurement? Error Analysis Lecture MIT OpenCourseWare · 49 min
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Step 1 of 6 · Overview30 min read ·
Key idea
Prereqs: The Scientific Method; fractions & percentages (Math). Next: Experiments vs correlation. Modeled on Khan Academy chemistry 'units & sig figs' and MIT 8.01 dimensional analysis.
Next: 1. SI units

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