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Flashcard For Test Wednesday

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Describe Bernoulli's Principle.   As the speed of a moving fluid increases, its pressure decreases.  
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What are the 4 forces?   Lift, thrust, drag, and gravity.  
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Name 1 thing that helps produce thrust.   Rockets, jets, or propellers.  
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What shape of wing does an airplane have?   An Airfoil (Streamline) shape.  
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What acts in an opposite direction to an object's movement?   Drag.  
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Describe Newton's First Law   Things want to keep doing what they are already doing (the law of inertia).  
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Describe Newton's Second Law   Acceleration of an object depends on the mass of the object and the amount of force applied.  
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Describe Newton's Third Law   Every action has an equal and opposite reaction.  
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Explain an Airfoil Shape.   The air moving on top has more space to cover so it is forced to move faster than the air on the bottom.  
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What is Thrust?   The forward force produced by the air's engine.  
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What is Drag?   The force that slows down a movement.  
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How is Weight measured?   In Newtons.  
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How is Mass measured?   In Kg.  
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What is Velocity?   Speed.  
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What are the two main factors affecting drg?   Shape and size.  
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What are the 3 properties of air?   Air has mass, air takes up space, and air exerts pressure.  
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Give an example of Bernoulli's principle.   When you are in the shower and turn the water on to high pressure and the shower curtain around your feet gets sucked in.  
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If there is slower speed, what is the pressure like.   Slower speed equals high pressure and vice versa.  
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