LESSON 7: Density and Graphing.
DENSITY- The density of an object is its mass divided by its volume..
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| density = mass ÷ volume |
..and is usually expressed in kg/L, kg/m³, or g/cm³!
[Example]
Determine the density of a statue that has a mass of 145 kg, and a volume of 50L.
- d = m/v
- d = 145/50
- d = 2.9 kg/L
GRAPHING
- All graphs must contain FIVE important things:
- Labelled axis
- Appropriate scale
- Title
- Data points
- Best fit line
- Three things can be done when working with graphs:
- Read the graph
- Find the slope (rise/run)
- Find the area under the graph
[Example]
The data below represents the hourly temperature for an 8-hour period.
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| Graphed Data, looked for slope, solved the area |
»Loureal Agustin«
posted by chemistry11 @ 3:02 PM
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