Aerodynamics 01

The 4 forces of flight are:

• Lift

• Thrust

• Velocity

• Weight

• Drag

Tags

NGSS.MS-PS2-4

Drag is parallel with what?

• Lift

• Velocity

• Weight

• Ground

The Euler equation says:

• Lift is related to drag

• Velocity is related to thrust

• Pressure is related to velocity

The Bernoulli equation says:

• The faster the airspeed, the lower the pressure

• The faster the airspeed, the higher the pressure

• The slower the airspeed, the lower the pressure

The crossection area of a tunnel is  $A$  .
The density is  $\rho$  .
The velocity of the flow is  $V$  .
The temperature of the flow is  $T$  .
Which is the equation for mass flow, mdot.

•  $mdot\ =\rho AV^2$  

•  $mdot\ =\rho TV$  

•  $mdot\ =\rho AV$  

An altimeter shows altitude by sensing:

• Airspeed

• Climb rate

• Atmospheric pressure

• Height

Pitot tube measures what:

• P dynamic

• P static

• P total

• Velocity

Airspeed can be measured from dynamic pressure. Dynamic pressure is equal to:

• P static - P total

• P static + P total

• P total + P static

• P total - P static

The airspeed V that touches the surface should be:

• V = windspeed

• V cannot be determined

• V = infinity

• V = 0

The international standard atmosphere at sea level is:

• Pressure p = 1.01 N/m2

• Density rho = 1.225 kg/m3

• Airspeed V = 0 m/s

• Temperature T = 288.15K

Tags

NGSS.HS-ESS3-5