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Determining Density Notes

Determining Density Notes. Mass. Mass is a measure of the amount of matter in an object. Mass is measure in grams . Mass is measured using a triple beam balance . . Mass vs. Weight. Weight is a measure of the force of gravity. .

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Determining Density Notes

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  1. Determining Density Notes

  2. Mass • Massis a measure of the amount of matter in an object. • Mass is measure in grams. • Mass is measured using a triple beam balance.

  3. Mass vs. Weight • Weightis a measure of the force of gravity.

  4. Volume • Volume is the amount of space occupied by a sample of matter. • Volume is measured in liters (L), milliliters (ml), cubic centimeters (cm3), and cubic meters (m3). • 1 ml = 1 cm3

  5. Volume of Irregular Objects • The volume of irregular objects is equal to the amount of water the object displaces.

  6. What is Density?

  7. What is Density? • Densityis the mass of a known volume of a substance. • Density is measured in grams per cubic centimeters (g/cm3)

  8. What is Density • Density = Mass/Volume • The density of water is 1.0 g/cm3

  9. Density Cont’d • If an object is more dense than the fluid in which it is immersed, the object sinks. • If an object is less dense than the fluid in which it is immersed it floats to the surface. • If the density of an object is equal to the density of the fluid in which it is immersed, the object floats at a constant level.

  10. Less or More?!?

  11. Example of Density • Submarine – Density decreased when water is pumped out of floatation tanks and the overall mass of the submarine decreases = density decrease = submarine float to top. • To dive, the submarine takes in water = increase mass = increase density = sinks.

  12. Relationship of Mass and Density • If the mass of an object is increased, the density of the object increases. • If the mass of an object is decreased, the density of the object decreases.

  13. Relationship of Volume and Density • If the volume of an object is increased, the density of the object decreases. • If the volume of an object is decreased, the density of the object increases.

  14. DMV TRIANGLE Density = Mass / Volume Mass = Density x Volume Volume = Mass/ Density

  15. Lava Lamp Activity

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