Principles of Flight - Part 1

The forces acting on an aeroplane in flight are...

• lift, drag, gravity and thrust

• lift, drag, weight and thrust

• buoyancy, drag, weight and thrust

• buoyancy, drag, gravity and thrust

Tags

NGSS.HS-PS2-1

In order for an aeroplane to stay in the air which force must be greater than the weight

• thrust

• drag

• lift

• buoyancy

Tags

NGSS.HS-PS2-1

Which letter represents air at lower pressure?

• a

• b

• c

• d

Lift is generated as air tries to move from areas of higher pressure to lower pressure, this would be represented by the movement between which letters

• a to c

• c to a

• b to d

• d to b

Lift operates at what angle relative to airflow?

• 30 degrees

• 45 degrees

• 90 degrees

• 180 degrees

The angle represented by a is the...

• angle of lift

• angle of attack

• angle of flight

• angle of air

In general the angle of attack is around 15 degrees for optimum lift, if the angle of attack is too large the plane will stall, the point at which this happens is know as the...

• death angle

• dangerous angle

• crisis angle

• critical angle

This image shows which axis...

• horizontal

• vertical

• longitudinal

• extraterrestrial

Movement about the vertical axis is called...

• pitching

• rolling

• yawing

• wobbling

Yawing is controlled by which part of the plane?

• rudder

• flaps

• elevators

• ailerons