Metric System and Unit Conversion

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Presentation transcript:

Metric System and Unit Conversion The greatest Chemistry Teacher this world has ever known

International System of Measurement Internationally used system of measurement known as the “Metric System”

Benefits of Using the Metric System Scientist all over the world use this system. They can share and understand each other’s work. Based on multiples of ten. Makes for easier conversions.

SI Base units

Volume The amount of space an object takes up. Base unit is cm3

Mass The amount of matter in an object. Base unit is the kg because the gram is too small.

Weight The pull gravity has on the mass of an object.

Fluid Volume When dealing with a fluid (gas or liquid) the most commonly used unit is the liter (L) 1ml = 1cm3

SI Prefixes

Dimensional Analysis Method of converting from one unit to another of equal value using conversion factors.

Conversion Factors These are fractions that are equal to one because the top is equal to the bottom despite the differing units. Multiplying anything by one will not change the number. Conversion factors spawn from two numbers that are equal to each other. Ex. 100cm = 1m 100𝑐𝑚 1𝑚 or 1𝑚 100𝑐𝑚

Using Dimensional Analysis How many mg are in 1.32kg? =1320000𝑚𝑔 How many seconds are in your lifetime? How many cases of pop will you drink in your lifetime? 1.32kg 1000g 1000mg 1kg 1g

Converting Complex Units What is 19 in2 in ft2?