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Concepts & Equations Mr. Abud
Density, Mass, & Volume Concepts & Equations Mr. Abud
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Mass Measurement of the amount of matter, or stuff, an object has
Measured in grams (g)
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Volume Measurement of the amount of space an object takes up
Measured in milliliters (mL) or cm3
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Volume of a regular shaped object
Rectangular Prism Length x width x height Cylinder Area of circular base (pi x radius2) x height
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Density Measurement of the amount of mass an object has per its volume
Derived unit: g/mL Comes from units of mass per units of volume
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Measuring Volume INDIRECTLY
Some objects are irregularly shaped So it’s hard to find out their volume We need a method of getting their volume though. INDIRECT MEASUREMENT Water displacement Put an irregular shaped object in water, measure how much the water rises, and that’s the object’s volume
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What is density? Density is a comparison of how much matter there is in a certain amount of space.
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Which one is more dense? Demonstration: People in a square
How about this: Which square is more dense?
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Which one is more dense? Demonstration: People in a square
How about this: Which square is more dense? More dense
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Which one is more dense? Now which one is more dense?
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Which one is more dense? Now which one is more dense? More dense
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Ways to Affect Density Change mass AND keep volume same
Change volume AND keep mass same
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Change Mass AND Keep Volume Same
Increase the mass increase density Decrease the mass decrease in density Which container has more density? A B
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Change Volume AND Keep Mass Same
Increase the volume decrease density Decrease the volume increase density Which container has more density? A B
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What 2 ways will INCREASE density?
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What 2 ways will INCREASE density?
Keep the same mass AND decrease the volume Keep the same volume AND increase the mass
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What 2 ways will DECREASE density?
Keep the same mass AND INcrease the volume Keep the same volume AND DEcrease the mass
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