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Archimedes&review

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Archimedes&review

1. 1. (plus, a little review on density)
2. 2.  Buoyancy is an upward force acting on an object placed in a fluid.  (don’t worry about this, we will learn more about it when we get to forces in the physics unit)
3. 3.  When an object is immersed in water, it feels lighter. In a cylinder filled with water, the action of inserting a mass in the liquid causes it to displace upward.
4. 4.  In 212 B.C., the Greek scientist Archimedes discovered the following principle: “The buoyant force acting on an object is equal to the mass of the displaced fluid.”This became known as: Archimede's principle.
5. 5.  What are the units used for mass?  What are the units used for the volume of a fluid? (how can you help yourself remember this?)  What are the units used for the volume of a solid? (how can you help yourself remember this?)  What are the units used for the density of a solid?  What are the units used for the density of a liquid?
6. 6.  Volume = 10ml, Mass= 5g  Mass= 25g, Volume= 5ml  Volume= 15, Density= 2g/cm3  Density= 25g/ml, Mass= 50g  Mass= 100g, Volume= 25cm3  Volume = 40ml, Mass= 10g
7. 7.  How do we set up a graph for density?  Let’s do one together!
8. 8. Mass Volume 5 grams 10 ml 10 grams 20 ml 15 grams 30 ml 20 grams 40 ml 25 grams 50 ml 30 grams 60 ml 35 grams 70 ml Cleaning Fluid “X” What is the density Of cleaning fluid X?