1. Concepts & Equations Mr. Abud
Density, Mass, & Volume
Concepts & Equations
Mr. Abud

2. Mass Measurement of the amount of matter, or stuff, an object has
Measured in grams (g)

3. Volume Measurement of the amount of space an object takes up
Measured in milliliters (mL) or cm3

4. Volume of a regular shaped object
Rectangular Prism
Length x width x height
Cylinder
Area of circular base (pi x radius2) x height

5. 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

6. 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

7. What is density?
Density is a comparison of how much matter there is in a certain amount of space.

8. Which one is more dense? Demonstration: People in a square
How about this: Which square is more dense?

9. Which one is more dense? Demonstration: People in a square
How about this: Which square is more dense?
More dense

10. Which one is more dense?
Now which one is more dense?

11. Which one is more dense?
Now which one is more dense?
More dense

12. Ways to Affect Density Change mass AND keep volume same
Change volume AND keep mass same

13. Change Mass AND Keep Volume Same
Increase the mass  increase density
Decrease the mass  decrease in density
Which container has more density?
A B

14. Change Volume AND Keep Mass Same
Increase the volume  decrease density
Decrease the volume  increase density
Which container has more density?
A B

15. What 2 ways will INCREASE density?

16. What 2 ways will INCREASE density?
Keep the same mass AND decrease the volume
Keep the same volume AND increase the mass

17. What 2 ways will DECREASE density?
Keep the same mass AND INcrease the volume
Keep the same volume AND DEcrease the mass