Measuring Matter

Jade Dickey
Flashcards by Jade Dickey, updated more than 1 year ago
Jade Dickey
Created by Jade Dickey almost 5 years ago
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Flashcards on matter
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The Metric System is... The standard system used around the world by scientists. We refer to it as the International System of Units or SI. It is based on a system of decimals. It is used to measure length, mass, volume, density and temperature.
Mass Measured in grams Mass measures the amount of matter in an object (BUT NOT THE WEIGHT!) Measured using a triple beam balance Constant no matter where the object is located
Weight The measure of gravitational pull on an object. Measured in newton's using a spring scale. Weight varies depending on location
Mass & Weight Similarities As the mass rises so does weight We use both to describe the heaviness of an object On earth these go up and down together
Volume Measured in Liters Volume is the amount of space an object takes up 1 mL = 1cm3
Volume of an Irregular Object We measure volume of irregular objects with a graduated cylinder. This method is called water displacement Liquids form a curved surface in graduated cylinders. Take your reading at the low point of the curve or MENISCUS
Matter Anything that has mass and volume.
Density The amount of mass in a given volume. Density = mass/volume › g/mL
Metric Conversions Since the metric system is a decimal system, it is easy to convert between units. There are several methods to use: › The stair step method › Decimal Hopping › Factor Label Method
Common Metric Units Kilo = 1000 Super sized Hecta = 100 Bigger Deka = 10 Big Base Unit – Meter – Liter – Gram  Deci = 0.1 Small Centi = 0.01 Smaller Milli = 0.001 Smallest  Remember: King Henry Died By Drinking Chocolate Milk
Decimal Hopping Since the metric system is set up by powers of ten all we have to do is move the decimal point to change units. If you are moving to a LARGER unit move the decimal to the LEFT. If you are moving to a SMALLER unit move the decimal to the RIGHT.
Length The distance from one point on an object to another Measured in Meters The smallest unit of length is the millimeter (mm). When would you use millimeters to measure length? 125 mm = ___ cm Largest unit of length is Kilometer
Temperature Measured in Celsius Water freezes at 0 ̊C and boils at 100 ̊C
Inertia An objects resistance to change in motion › A change in motion could be moving something or slowing something down Inertia is directly related to mass...the more massive something is the harder it will be to change its motion.
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