si measurement le system international d’unites internationally agreed –75 000 not 75, 000...
Post on 28-Dec-2015
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SI Measurement
• Le System international d’Unites
• Internationally agreed – 75 000 not 75, 000– Meters not miles– Liters not gallons
Other Units
• Derived unit – combination of units like in velocity m/s2, or pressure kg/m s2
• Density – g/cm
Mass
• kilogram is the standard– 1000 grams
• We use grams – more useful in science class.• King Henry Chart
– Remember
• Mass measure of matter, does not depend on gravity
• Weight – measure of the gravitational pull on the mass
Mass and weight
• mass is the amount of matter and will not change with location
• Weight is a measure of gravity and will change with location
How to convert
• King Henry chart – memorize
• King Henry drank uho delicious chocolate milk
• Kilo Hecto daka ______deci centi milli
Multiple conversions
• Affects density, area etc
• If the unit is squared, you need to convert twice.
• If the unit is cubed you need to convert _______________
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