PRINCIPLES OF FLIGHT

PRINCIPLES OF FLIGHT

FORCE

A force is a push or a pull that causes an object to change its shape or direction

THRUST

Thrust is the force that propels a machine in a direction of motion.

It is produced by an engine

DRAG

Drag is caused by friction and differences in air pressure.

Drag is the force that acts opposite to the force of motion

LIFT

it is created by the differences in air pressure.

Lift is a force that acts at a right angle to the direction of motion through the air. (upward)

WEIGHT

weight acts in a downward direction toward the centre of the earth

Weight is the force of gravity

Multiple Choice

Which force acting on a flying object uses an engine?

• drag

• lift

• thrust

• weight

Multiple Choice

Which force is also called the force of gravity

• drag

• thrust

• lift

• weight

Multiple Choice

Which force uses the bernoulli's principle?

• drag

• thrust

• lift

• weight