Units and Measurements

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Flashcards on Units and Measurements based on lecture notes.

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26 Terms

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Mili

1/1000

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Centi

1/100

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Deci

1/10

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Kilo

1000

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SI or Metric System

International system of units, sometimes referred to as the decimal system (based on the number 10).

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Area unit

Square meter

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Volume unit

Cubic meter

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Speed/velocity unit

Meter per second

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Density unit

Kilogram per cubic meter

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Base unit of length

Meter

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Commonly used units of Length

Millimeter, Centimeter, Meter, Kilometer

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Units of area

Square millimeter, Square centimeter, Square meter, Square kilometer

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Calculating areas

Squares and rectangles - length x width, Circles - πr²

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Converting area units

10², 100², 1000²

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Mass

The amount of matter in an object, measured in g or kg.

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Inertia

Tendency of objects to remain in motion or stay at rest unless acted upon by outside force.

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Weight

A measure of the force of attraction between any two object that have mass.

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Metric unit for weight

Newton (N)

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Units of volume (solid)

Cubic millimeter, Cubic centimeter, Cubic decimeter, Cubic meter

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Units of volume (liquid)

Liter (L), Milliliter (mL), 1cm³ = 1mL

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Density

Density = mass / volume

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Units of density

Grams per cubic centimeter (g/cm³), Kilograms per cubic meter (kg/m³)

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Converting between different units of density

To convert from kg/m³ to g/cm³ divide by 1000, To convert from g/cm³ to kg/m³ multiply by 1000

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Galileo thermometer

Less dense bubbles float up

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Mass against Volume Graphs

Different slopes because the substance have different density

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Slope in Mass against Volume Graphs

Higher density = steeper slope, Smaller density = less steep slope