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Calculate Density, Mass and Volume
Worksheet
Grade Level
Grade 8
8.29 Calculate Density, Mass and Volume
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A stone has a mass of 0.160 kg. Water rises from 10 mL to 70 mL when it is placed in the cylinder.
Which option correctly uses water displacement and the right units to find density?
A
Find volume by displacement: 70 − 10 = 60 mL. Convert 0.160 kg to 160 g, then d = 160 g ÷ 60 mL = 2.67 g/mL.
B
Add water readings: 70+10 = 80 mL; d = 160 ÷ 80 = 2 g/mL.
C
Skip converting mass: d = 0.160 kg ÷ 60 mL = 0.0027 kg/mL.
D
Invert the formula: d = V ÷ m = 60 ÷ 160 = 0.375 mL/g.
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