Density

Mass

Measurement of the amount of matter(or stuff) in an object Measured in grams (g).
There are 3 states of matter:
See the below illustration for more examples:
3 States

Volume

Measurement of the amount of space an object takes up and it is measured for example in milliliters (ml) or cm3
volume

Exercise

Question: See the below illustation and determine which one would have the greater volume? The greater mass?
feather-rock

Density

Density is defined as mass per unit volume.
Question:See the below illustation and determine which square is more dense.
square

How to find the density

Exercise

Assume the mass of an object is 45 grams and it takes up 9 c3 of space, calculate the density. Solution: Density D = M / V = = 45 g / 9 c3 = 5 g/c3

Exercises

Here is a list of questions related to density

Ways to Affect Density

Logically speaking:
  • Increase the mass → increase density
  • Decrease the mass → decrease in density
Practice: Here is an exercise about density

Check your answers here.

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Date of last modification: Summer , 2019