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1 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.

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Presentation on theme: "1 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."— Presentation transcript:

1 1 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 Notes

2 2 SPI 0807.9.7 Density 1)Please do not use a calculator…work the math on your paper 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 10cm 3 ? 2) …density of an object with a mass of 45kg a volume of 43m 3 ? 3) …density of an object with a mass of 350g a volume of 95cm 3 ? Feb 7, 2013 Solve The Three Density Problems Shown Below Notes

3 3 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 10cm 3 ? 25g ÷ 10cm 3 = 2.5g/cm 3 2) …density of an object with a mass of 45kg a volume of 43m 3 ? (round up to the nearest hundredth) 45kg ÷ 43m 3 = 1.05kg/m 3 3) …density of an object with a mass of 350g a volume of 95cm 3 ? (round up to the nearest hundredth) 350g ÷ 95cm 3 = 3.68g/cm 3 Notes

4 4 SPI 0807.9.7 Density 1) Identify which liquids would occupy levels A, B, and C according to their density. Feb 12, 2013 Level C Level B Level A DesignationSubstanceDensity Liquid 01Water1.0 g/mL Liquid 02Liquid Mercury13.6 g/mL Liquid 03Turpentine0.8 g/mL Notes

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

6 6 1) Identify which liquids would occupy levels A, B, and C according to their density. Feb 12, 2013 Level C Level B Level A DesignationSubstanceDensity Liquid 01Water1.0 g/mL Liquid 02Liquid Mercury13.6 g/mL Liquid 03Turpentine0.8 g/mL Turpentine (0.8 g/mL) Water (1.0 g/mL) Mercury (13.6 g/mL) SPI 0807.9.7 (Density) ANSWERS Notes

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

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