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Metrics Trix

The International System of Units (SI) is a standardized measurement system providing quantitative data across various fields. It uses basic units such as meter for linear measurement, gram for mass, liter for volume, second for time, and degrees Celsius for temperature. SI also includes approximations, such as 1 mile being about 1.6 kilometers. Measurements can be categorized as direct or indirect, enabling precise data collection. This guide summarizes the essential units and their applications, ensuring accuracy in scientific and everyday contexts.

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Metrics Trix

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  1. Metrics Trix

  2. The SI system • International system • Système international d'unités

  3. A measurement system providesquantitativedata • Quantitative means a number is used. You are measuring a quantity. • Qualitative data: • It turned red • It is cold • It started steaming • You are measuring a quality

  4. Basic units • Linear measurement: meter • Mass: gram, but Kg is the standard • Volume: liter • Time: second • Temperature: degrees Celsius • Absolute temperature: Kelvins

  5. Approximations • 5 miles is about 8 Km • Meter is about a yard • 2.54 cm = 1 inch • 1 paper clip is about 1 gram • 22 pounds = 10 Kg • 1 liter is about 1 quart • 3.7 L = 1 gal

  6. KHD_dcm

  7. Best units • Most sensible number • Best accuracy

  8. Types of measurements • Direct • Indirect

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