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SPI 0807.9.7 Density

SPI 0807.9.7 Density. Notes. . 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,

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SPI 0807.9.7 Density

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  1. SPI 0807.9.7 Density Notes  • 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

  2. SPI 0807.9.7 Density Notes Feb 7, 2013 • Please do not use a calculator…work the math on your paper • 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 ? Solve The Three Density Problems Shown Below 2

  3. SPI 0807.9.7 Density Notes 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

  4. SPI 0807.9.7 Density Notes Feb 12, 2013 1) Identify which liquids would occupy levels A, B, and C according to their density. Level A Level B Level C 4

  5. SPI 0807.9.7 Density Notes 2) Which cube below has the GREATEST density? Mass: 12g Volume: 3cm3 Mass: 23g Volume: 5cm3 Mass: 11g Volume: 3cm3 Mass: 19g Volume: 7cm3 (A) (B) (D) (C) 5

  6. SPI 0807.9.7 (Density) ANSWERS Notes Feb 12, 2013 1) Identify which liquids would occupy levels A, B, and C according to their density. Level A Level B Level C Turpentine (0.8 g/mL) Water (1.0 g/mL) Mercury (13.6 g/mL) 6

  7. SPI 0807.9.7 (Density) ANSWERS Notes 2) Which cube below has the GREATEST density? (B) (A) Mass: 11g Volume: 3cm3 Mass: 23g Volume: 5cm3 Mass: 12g Volume: 3cm3 Mass: 19g Volume: 7cm3 2.71 g/cm3 4 g/cm3 (D) (C) 4.6 g/cm3 3.6 g/cm3 7

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