Flight Facts
Flight Forces
100

What is air? Why is it a fluid?

Air is considered a fluid that is the invisible gas surrounding earth. It is a fluid because it flows.

100

What is the opposite of thrust?

Drag
200

Bernoulli's Principle helps describe which force of flight?

Lift
200

Which of the four forces opposes weight?

Lift

300

What is aerodynamics?

Objects designed to go through the air easier without as much drag resisting its forward motion.

300

Which four forces opposes drag?

Thrust
400

How does Bernoulli's Principle explain how lift is achieved?

It explains how lift occurs when the air pressure under the wing is higher than the air pressure above the wing, higher pressure underneath pushes the wing up. 

400

What is drag?

Drag is the force that acts opposite to the direction of motion. Drag is caused by difference in air pressure.
500

When a skydiver is using a parachute, they are using which force of flying?

Drag

500
What opposes lift?
Weight