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Flight_Science
Flashcard For Test Wednesday
Question | Answer |
---|---|
Describe Bernoulli's Principle. | As the speed of a moving fluid increases, its pressure decreases. |
What are the 4 forces? | Lift, thrust, drag, and gravity. |
Name 1 thing that helps produce thrust. | Rockets, jets, or propellers. |
What shape of wing does an airplane have? | An Airfoil (Streamline) shape. |
What acts in an opposite direction to an object's movement? | Drag. |
Describe Newton's First Law | Things want to keep doing what they are already doing (the law of inertia). |
Describe Newton's Second Law | Acceleration of an object depends on the mass of the object and the amount of force applied. |
Describe Newton's Third Law | Every action has an equal and opposite reaction. |
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. |
What is Thrust? | The forward force produced by the air's engine. |
What is Drag? | The force that slows down a movement. |
How is Weight measured? | In Newtons. |
How is Mass measured? | In Kg. |
What is Velocity? | Speed. |
What are the two main factors affecting drg? | Shape and size. |
What are the 3 properties of air? | Air has mass, air takes up space, and air exerts pressure. |
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. |
If there is slower speed, what is the pressure like. | Slower speed equals high pressure and vice versa. |