Notes
SPI 0807.9.7
Density

What is density?
 Density is simply how much matter (mass)
you have crammed in a given space (volume)
 Density is determined by dividing the mass
of the object by the volume of the object
Example:
If you have two objects that are the same size,
but one of the object contains more matter, then
you would say that it has greater density than
the other object
1
Notes
SPI 0807.9.7
Density
Feb 7, 2013
1) Please do not use a calculator…work the math on your paper
Solve The Three Density Problems Shown Below
2) Use this formula
Density=mass divided by volume
or
D= m/V
1) …density of an object with a mass of 25g a volume of 10cm3?
2) …density of an object with a mass of 45kg a volume of 43m3?
3) …density of an object with a mass of 350g a volume of 95cm3 ?
2
Notes
SPI 0807.9.7
Density

Solve the density problems below
Density=mass divided by volume
1) …density of an object with a mass of 25g a volume of 10cm3?
25g ÷ 10cm3 = 2.5g/cm3
2) …density of an object with a mass of 45kg a volume of 43m3?
(round up to the nearest hundredth)
45kg ÷ 43m3 = 1.05kg/m3
3) …density of an object with a mass of 350g a volume of 95cm3 ?
(round up to the nearest hundredth)
350g ÷ 95cm3 = 3.68g/cm3
3
Notes
SPI 0807.9.7
Density
Feb 12, 2013
Designation
Substance
Density
Liquid 01
Water
1.0 g/mL
Liquid 02
Liquid Mercury
13.6 g/mL
Liquid 03
Turpentine
0.8 g/mL
1) Identify which liquids would occupy levels A, B, and C
according to their density.
Level A
Level B
Level C
4
Notes

SPI 0807.9.7
Density
2) Which cube below has the GREATEST density?
(A)
(B)
Mass: 19g
Volume: 7cm3
Mass: 12g
Volume: 3cm3
(C)
Mass: 11g
Volume: 3cm3
(D)
Mass: 23g
Volume: 5cm3
5
Notes
SPI 0807.9.7 (Density)
ANSWERS
Designation
Substance
Density
Liquid 01
Water
1.0 g/mL
Liquid 02
Liquid Mercury
13.6 g/mL
Liquid 03
Turpentine
0.8 g/mL
Feb 12, 2013
1) Identify which liquids would occupy levels A, B, and C
according to their density.
Level A Turpentine (0.8 g/mL)
Level B Water (1.0 g/mL)
Level C Mercury (13.6 g/mL)
6
Notes
SPI 0807.9.7 (Density)
ANSWERS

2) Which cube below has the GREATEST density?
(B)
(A)
Mass: 12g
Volume: 3cm3
Mass: 19g
Volume: 7cm3
4 g/cm3
2.71 g/cm3
(C)
(D)
Mass: 11g
Volume: 3cm3
Mass: 23g
Volume: 5cm3
3.6 g/cm3
4.6 g/cm3
7