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Score
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15
×
What is air pressure?
the force of air on surrounding objects (higher pressure = more force)
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×
banana
Go to last place!
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×
gift
Win 25 points!
Okay!
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rocket
Go to first place!
Okay!
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banana
Go to last place!
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20
×
What happens to air when you heat it up?
The air particles move faster, air expands, air becomes less dense, and air rises
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25
×
How do wings generate lift?
The airfoil shape of a wing pushes air down and causes a pressure difference between the bottom and top of the wing.
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5
×
A balloon with air inside of it is heavier than a balloon without air inside of it, true or false
true!
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15
×
Racing cyclists often bend their head down low. Why do they do this?
Bending their head down reduces the area of their body that is exposed to the air. This means less air resistance, and less drag.
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lifesaver
Give 20 points!
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gift
Win 15 points!
Okay!
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rocket
Go to first place!
Okay!
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lifesaver
Give 25 points!
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15
×
For thrust to be generated in an engine, there has to be more pressure in the backward direction than the forward direction. True or false?
False!
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15
×
What would happen if you blew cold air inside a hot air balloon while it was flying?
It would fall! Cold air sinks.
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20
×
Newton's third law says: If an object has a force going forward, there has to be an equal force going backward. What's a real life example of this?
...
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15
×
Where does gravity come from?
Gravity is a pulling force that comes from very large and heavy objects, like planets.
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×
boom
Lose 50 points!
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star
Double points!
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gift
Win 25 points!
Okay!
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thief
Give points!
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25
10
×
Air is constantly pressing on us in daily life, true or false?
True!
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10
×
What is an airfoil?
The common shape of a wing, that helps it generate lift.
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15
×
In order for a helicopter to hover in the air, all four forces of flight have to be ____________
Balanced / Equal
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trap
No points!
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gift
Win 15 points!
Okay!
×
shark
Other team loses 5 points!
Okay!
×
banana
Go to last place!
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×
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