Density Problems HES by hcj

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```									                                                                    Density Problems
[Name]                                                              [Date]                [Hour]
Density Problems                                              example:                   M
You MUST express the problem in three steps as follows:                    1]       D = ------
1st line:     state formula                                                               V        4g
2nd line:     substitute numbers into formula with units                   2]       D     =      -------
3rd line:     final answer with appropriate units                                                 2 cm3
Note: Accuracy should be to one decimal place.                     3]       D=     2 _g__
cm3
Find density, according to directions above.
1.                                                         2.
mass = 2g                                                  mass = 3g
volume = 1cm3                                              volume = 1cm3

3.                                                         4.
volume = 2cm3                                              volume = 3cm3
mass = 1g                                                  mass = 1g

5.                                                         6.
mass = 4g                                                  mass = 6g
volume = 2cm3                                              volume = 2cm3

7.                                                         8.
volume = 4cm3                                              volume = 6cm3
mass = 2g                                                  mass = 2g

9.                                                         10.
mass = 10g                                                 mass = 2g
volume = 2cm3                                              volume = 10cm3

11.                                                        12.
vol = 10cm3                                                vol = 1cm3
mass = 78g                                                 mass = 2.7g

13.                                                        14.
mass = 193g                                                mass = 1.05g
vol = 10cm3                                                vol = 0.1cm3

HES Homework                                          1                                                    9/10/00
Density Problems
Name                                                             Hr

15.                                                        16.
volume = 10cm3                                             volume = 1cm3
mass = 113g                                                mass = 0.8g

17.      What substance is question # 11 ? ______________________
18.      What substance is question # 12 ? ______________________
19.      What substance is question # 13 ? ______________________
20.      What substance is question # 14 ? ______________________
21.      What substance is question # 15 ? ______________________
Densities of some common substances [materials]:
M A T E R IA L        D E N S IT Y
[s u b s ta n c e ]    [g /c m 3 ]

a lu m in u m            2 .7
g a s o lin e           0 .7
g o ld             1 9 .3
le a d             1 1 .3
o ak w o o d            0 .8 5
s ilv e r           1 0 .5
s te e l             7 .8
w a te r [s o lid ]       0 .9
Find density in the problems below:
22.                                                        23.
L=       4cm                                               L=    10cm
W=       3cm                                               W=    1cm
H=       2cm                                               H=    1cm
m=       48g                                               m=    30g

24.                                                        25.
L=       5cm                                               L=    5cm
W=       3cm                                               W=    4cm
H=       2cm                                               H=    3cm
m=       15g                                               m=    180g

HES Homework                                           2                                  9/10/00

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