1 – Measurement

This section will help you understand units of measurement and tell you how to take accurate and precise measurements. 

1.1 – SI Units

1.2 – Measuring Length

1.2.1 – Rulers & Tape Measures

1.2.2 – Callipers

1.2.3 – Micrometer Screw Gauge

1.3 – Measuring Time

1.3.1 – Stopwatch

1.3.2 – Pendulum

1.4 – Measuring Angles

1.5 – Measuring Mass

1.6 – Measuring Density

 

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Quotes by Physicists

"Each piece, or part, of the whole of nature is always merely an approximation to the complete truth, or the complete truth so far as we know it. In fact, everything we know is only some kind of approximation because we know that we do not know all the laws as yet."

Richard P. Feynman

2026 Physics Lessons