Forces of Flight
This force causes something to move forward.
Thrust?
What property of air is demonstrated when you weigh an inflated balloon and compare it to a deflated one?
Air has Mass
An invisible mixture of gases which make up the earths atmosphere.
Air
What are the two ways that airplanes create thrust?
Engines/Turbines and Propellers
When a candle under a glass snuffs out on its own, this demonstrates which property of air?
Air is made out of different gases.
This will happen to an air plane if lift becomes greater that the weight?
It will rise.
The property of air is demonstrated by a cup of water being flipped upside down with a piece of cardboard on the top and the water doesn't spill out when the person's hand is removed.
Air Exerts Pressure
What part of an airplane gives it lift?
The wings.
Which property of air causes your ears to pop on an airplane?
Air exerts pressure.
This will happen to an air plane if thrust becomes greater than the drag.
It will speed up
What property of air keeps paper towel at the bottom of a glass dry when it is placed down into water?
Air Takes Up Space
At what altitude (distance up or down) is air pressure the highest on Earth?
The lower the altitude.
What makes flight possible?
Differences in Air Pressure
Running into the wind demonstrates which two properties of air?
Air is Fluid and Air Exerts Pressure.
This will happen to an airplane if thrust becomes less than the drag.
It will slow down
What property of air is demonstrated by blowing up a balloon?
Air can be compressed.
Around what percentage of the air is oxygen?
21%
This is the branch of engineering focused reducing drag on airplanes.
Aerodynamics
When inflating sports equipment, what properties of air are being demonstrated? (Name at least 2)
Air takes up space, Air can be Compressed, Air Exerts Pressure.
What is Bernoulli's Principle?
Fast moving air creates lower pressure and slow moving air creates higher pressure.
List the six properties of air.
Air Takes Up Space, Air has Mass, Air is Fluid, Air is Made of Different Gases, Air can be Compressed, and Air Exerts Pressure?
The gas that makes up most of our air.
Nitrogen
It is shaped to allow fast moving air to move on top of it and slower moving air on the bottom.
Airfoil?
Popping bubble wrap demonstrates which properties of air? (Name 2)
Air can be compressed, Air exerts pressure, Air takes up space.