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15
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Which will float better - an object which displaces 10kg of water, or an object which displaces 50kg of water? Both have the same mass.
50kg - more displacement, better floatation.
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10
×
What is atmospheric pressure? Is it acting on you now?
The pressure from the air in the atmosphere. Yes! In all directions.
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10
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What would happen if you teleported to the bottom of the Mariana trench with just a high-tech oxygen tank?
You would be crushed by water pressure.
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15
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What factors affect flow rate through a tube?
Tube diameter, the amount of force (pressure) pushing the fluid through, viscosity, the adhesion/cohesion of the fluid, the material of the tube..
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seesaw
Swap points!
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seesaw
Swap points!
Okay!
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shark
Other team loses 25 points!
Okay!
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thief
Give points!
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25
10
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Which has greater buoyancy - salt or fresh water?
Salt water (more dense)
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15
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Draw diagrams related to particle theory to explain one of the following concepts: compressability, density, temperature/viscosity, temperature/volume
...
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10
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Adhesion is...
the force of attraction between particles of a fluid and particles of other substances
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10
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Two objects have the same mass, but different density. What can you say about their volume?
The more dense object will have a smaller volume.
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15
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Water has a special property to do with density and temperature. What is it?
Water gets LESS dense when it becomes a solid (because its particles form crystals which have more space in between)
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baam
Lose 25 points!
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gold
Win 50 points!
Okay!
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gift
Win 20 points!
Okay!
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lifesaver
Give 15 points!
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baam
Lose 25 points!
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fairy
Take points!
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25
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rocket
Go to first place!
Okay!
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banana
Go to last place!
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15
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Why is buoyancy good for oil spills?
Oil is more buoyant than water, so the oil sits at the top of water. It's easier to clean it up.
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thief
Give points!
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25
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gift
Win 20 points!
Okay!
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gift
Win 25 points!
Okay!
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banana
Go to last place!
Oops!
15
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1Pa = 1N / m^2. What does this formula say, and what does "Pa" represent?
Pressure equals Force in Newtons divided by Area in meters squared. Pa = Pascals
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10
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What is buoyancy?
The upward force a fluid exerts on an object.
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