Aerodynamics Quiz fist 100 pages

What are the four fundamental units used in aerodynamics?

• Mass, time, volume, light

• Mass, length, time, temperature

• Pressure, speed, force, area

Which layer of the atmosphere contains most weather phenomena?

• Troposphere

• Stratosphere

• Mesosphere

What is the SI unit of pressure?

• Newton

• Joule

• Pascal

What is the formula for dynamic pressure?

• ρgh

• ½ρv²

• F/m

What does ISA stand for?

• International Space Aerodynamics

• International Standard Atmosphere

• International Static Altitude

According to Bernoulli's principle, as speed increases:

• Static pressure increases

• Static pressure decreases

• Total pressure increases

What causes lift on a wing?

• Equal pressure

• High pressure above

• Lower pressure above than below

What is the angle of attack?

• Angle between aircraft heading and wind

• Angle between chord line and relative airflow

• Angle between vertical axis and fuselage

What happens when the critical angle of attack is exceeded?

• Lift increases

• Stall occurs

• Drag disappears

What is the aspect ratio?

• Wing span divided by average chord

• Wing area divided by thickness

• Chord divided by speed