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States of Matter Fluids. Activty Will it float? Will it float? Rock Rock Potato Potato Paper clip Paper clip Pen Pen Pencil Pencil Coin Coin Candle Candle.

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Presentation on theme: "States of Matter Fluids. Activty Will it float? Will it float? Rock Rock Potato Potato Paper clip Paper clip Pen Pen Pencil Pencil Coin Coin Candle Candle."— Presentation transcript:

1 States of Matter Fluids

2 Activty Will it float? Will it float? Rock Rock Potato Potato Paper clip Paper clip Pen Pen Pencil Pencil Coin Coin Candle Candle Eraser Eraser

3 Objectives Describe the buoyant force and explain how it keeps objects afloat. Describe the buoyant force and explain how it keeps objects afloat. Define Archimedes’ principle. Define Archimedes’ principle. Explain the role of density in an object’s ability to float. Explain the role of density in an object’s ability to float. State and apply Pascal’s principle. State and apply Pascal’s principle. State and apply Bernoulli’s principle. State and apply Bernoulli’s principle.

4 Describe the buoyant force and explain how it keeps objects afloat. Define Archimedes’ principle.

5 Pressure Pressure = force / area = F / A Units = Newton per square meter = pascal

6 Buoyant Force

7 Buoyancy USS Dwight D. Eisenhower Aircraft Carrier Dimensions Length of flight deck: 1,092 ft. Width of flight deck: 252 ft. Height keel to mast: 244 ft. (equal to 24-story building) Area of flight deck: 4.5 acres Weight of carrier: 95,000 tons

8 Archimedes’ Principle

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10 Explain the role of density in an object’s ability to float.

11 Density and Floating

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14 Mythbusters http://videos.howstuffworks.com/discovery/65 40-mythbusters-lets-talk-buoyancy-video.htm http://videos.howstuffworks.com/discovery/65 40-mythbusters-lets-talk-buoyancy-video.htm http://videos.howstuffworks.com/discovery/65 40-mythbusters-lets-talk-buoyancy-video.htm http://videos.howstuffworks.com/discovery/65 40-mythbusters-lets-talk-buoyancy-video.htm

15 State and apply Pascal’s principle.

16 Pascal’s Principle F 1 / A 1 = F 2 / A 2

17 State and apply Bernoulli’s principle.

18 Bernoulli’s Principle

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