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16 Cards in this Set
- Front
- Back
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Meaning of "lift"
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The upwards motion, rising up too sky
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Meaning of "Gravity"
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A downwards force, keeping the moon in orbit around the earth.
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What is a fluid?
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anything that has no fixed shape and that can flow.
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The meaning of "Streamlined"
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The shape of a fish and how their fins move with the water, their faces is pointed, and how their entire body is muscle and always moving.
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Meaning of "pitch"
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The nose of the airplane rises up and down.
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Meaning of "roll"
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one wing rises as the other wing moves down.
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Meaning of "yaw"
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the nose of the plane moves left or right while the tails moves the opposite way.
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what rises "hot air" or "cold air?"
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Hot air
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meaning of "propulsion"
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the action of driving or pushing forward.
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In order to fly, objects must overcome __________ and attain __________.
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DRAG and attain THRUST
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HOT air is less or more dense than cold air?
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HOT air is LESS DENSE than cold air.
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meaning of "air"
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A mixture of gasses, mostly oxygen and nitrogen.
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The meaning of "buoyancy"
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the ability to float or rise in any fluid.
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Meaning of "Density"
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the degree of compactness of a substance.
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meaning of "pressure"
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the force of one object on another
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Solid particles only ______.
Liquid particles _________________. Gas particles ________________. |
vibrate.
are able to move around. move freely. |
