10 Fluids And Motion (Flight)

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  • 1. Fluids and Motion Based on Bernoulli’s Principal: Pressure in a fluid decreases as the fluid’s velocity increases.
  • 2.  
  • 3. Lift: Upward force on object in fluid Thrust: Pushing force exerted by engine Drag: Opposes motion of airplane (friction)
  • 4. Small Wing = Less lift / need large thrust Large wing: More lift / need less thrust Air travels fast over top of wing and slower over bottom of wing Slow fluid: high pressure Fast Fluid: Low Pressure
  • 5. Fluids flow from high to low pressure causing the wing to lift Upward Lift
  • 6. High Pressure Here