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m&m 4.5
Forces in Moving Fluids
| Question | Answer |
|---|---|
| Bernoulli principle | Sideward pressure exerted by a moving fluid decreases as the fluid's velocity increases |
| Orville and Wilbur Wright | Created first working airplane called Flyer |
| Airfoil | Wing shape. Curved top surface, flat bottom surface |
| Lift | The upward force resulting from the difference in pressure on the upper and lower surfaces of a wing. Increases with speed and tilt |
| Weight | The force of gravity |
| Thrust | The force that drives a plane forward through the air, allowing the wings to create lift |
| Drag | The force exerted by the air that tends to slow the movement of a plane |
| Streamlining | The science of shaping objects so they allow the easy flow of fluids around them to reduce drag |
| Pitch | The angle up or down of a plane. Controlled by elevators |
| Roll | The side to side movement of a plane. Controlled by ailerons |
| Yaw | The angle left or right of a plane. Controlled by rudder |
| Center of gravity | The balance point of pitch, roll, or yaw |
| Rotor | The large propeller-like assembly above the main body of the helicopter |
| Gas turbine | A special type of internal-combustion engine that produces a great amount of power for its weight |
| Hydrofoil | Raises the hull of the ship out of water reducing drag which allows it to travel faster |
| Curveball | Rapid sideways spin of the ball causes the air on one side to move faster than the air on the other side. Ball curves to side with lower pressure |
| Carburetor | A device that mixes air and fuel in the engines of lawnmowers, most motorcycles, and some cars |
Created by:
Jer Stephens
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