The common shape of a wing, that helps it generate lift.
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5
Air can be compressed, true or false?
True
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10
Piston engines turn a set of small wings called ___________ to produce thrust
A propeller!
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15
What's an example of a flying aircraft with no engine?
glider, hang glider, flying squirrel, paper airplane, etc.
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15
What is a vaccuum?
A space with nothing in it (no air)
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seesaw
Swap points!
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seesaw
Swap points!
Okay!
fairy
Take points!
5
10
15
20
25
thief
Give points!
5
10
15
20
25
monster
Reset all scores!
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rocket
Go to first place!
Okay!
shark
Other team loses 15 points!
Okay!
baam
Lose 20 points!
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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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5
What kind of force do engines produce?
Thrust.
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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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10
Air is constantly pressing on us in daily life, true or false?
True!
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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
Which plane will experience less drag, and why?
Drag is caused by air resistance, or the rubbing (friction) of air against the surface of an object. The more air can pass over the object, the less drag!
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20
What did Bernoulli say about fast and slow air?
Faster air exerts lower pressure, slower air exerts higher pressure