How do they work? List 5 facts or observations! Sketch a diagram.
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Transcript of How do they work? List 5 facts or observations! Sketch a diagram.
![Page 1: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/1.jpg)
![Page 2: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/2.jpg)
How do they work?
List 5 facts or observations!
Sketch a diagram
![Page 3: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/3.jpg)
When is it easier to make the divers sink?
• When the bottle has very little air in it.• When the bottle is half-full of air.
A B
![Page 4: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/4.jpg)
Is Water Compressible?Can you change the density of
water by pushing on it?
![Page 5: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/5.jpg)
Is Air Compressible?Can you change the density of
air by pushing on it?
![Page 6: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/6.jpg)
Is Water Compressible?
No. Only air is compressible. The
density of air can change.
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Using density, explain why the diver floats.
Water’s density = 1 g/cm3. The diver’s density is less than 1 g/cm3.
1 g/cm3
0.5 g/cm3
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Density =
=
= 0.5 g/cm3
Volume
Mass
As compared to water, 0.5 g/cm3 is less dense than water. It floats.
10 g
20 cm3
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What changes when you squeeze the bottle? (Don’t say color.)
Volume Changes.
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Volume Changes due to increased pressure.
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Mass = 10 g Mass = 10 gVolume = 20 cm3 Volume = 5 cm3
Density = 0.5 g/cm3 Density = 2 g/cm3
Density = Mass/Volume
![Page 12: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/12.jpg)
When volume decreases,
Density…
2 g/cm3
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Is the mass of the diver changed at all?
No! Mass does not change.
Volume decreases and density increases.
2 g/cm3
1 g/cm3
![Page 14: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/14.jpg)
Using density, explain why the diver sinks.
Water’s density = 1 g/cm3.
The diver’s density is greater than 1 g/cm3.
2 g/cm3
1 g/cm3
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Predict
Which diver will sink first?
A B
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Predict
Which diver will rise first?
A B
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![Page 18: How do they work? List 5 facts or observations! Sketch a diagram.](https://reader035.fdocuments.us/reader035/viewer/2022062511/551b18f9550346cf5a8b542b/html5/thumbnails/18.jpg)
Mass
VolumeDensity =
Review
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Review
1. Why does a cube of ice float in water?
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Water versus Ice
Water
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Question 1
2 g 10 g 20 g
Three cubes have the same volume, but very different densities. Which cube has the greatest density?
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Question 2
12 g
Three cylinders have the same volume, but very different densities. Which cylinder will displace the most water when submerged? Or will each cylinder displace the same volume of water?
32 g 8 g
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Review
Which is denser?
Both boxes have the same volume.
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What is the density of the ship?
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Review
Which one is more likely to float in H2O?
Both boxes have the same volume.