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Systems of Measurement 2

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Michele Fishman

on 29 September 2014

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Transcript of Systems of Measurement 2

System of Measurement Part 2
Area
- is the measure of how much surface an object has.
Area= length x width
Example- what is the area of the carpet in the classroom?
-what is the area below?
Volume
-the amount of space that something occupies.
-volume of a liquid is usually measured in Liters, milliliters, microliters.
-volume of an object is measured in cubic centimeters.
-to calculate the volume of an object
Volume= length x width x height
Volume
-an irregular shaped object can't be measured by l x w x h.
-a rock can measured by by placing it in a graduated cylinder with an amount of water. when you add the object the water level will go up. You then subtract the final water level from the starting to get the volume.
-always put in cm 3.
Example- Graduated cylander contains 70ml of water. You add your rock. The water level know reads 80ml.
80ml-70ml= 10ml
convert the units to 10cm3
Mass
-is the amount of matter that makes up an object
-matter is anything that takes up space and has mass.
-the kilogram is the basic unit of mass
-grams measure the mass small objects
-an apple has a mass of 100g
Temperature
-measure of how hot and cold something is.
-molecules that make up matter are constantly moving.
-when energy is transferred to these molecules, they move even more, which cause the temperature to increase
Example- remember the lab where the sugar dissolved faster in hot water. Why?
Kelvin(K) is the unit used to measure temperature in SI Units.
-We will use Celsius(C)
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