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How do airplanes fly?

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Why do airplanes stay in the air?

There is no net force on them

They have wings

They have an engine


What four forces must be balanced?

Thrust, lift, gravity, pull

Pull, lift, gravity, push

Thrust, lift, gravity, drag


What is a crucial part of flying?

The engine on the plane

Getting air molucules to push the plane up

The wings


What part of the wings crash into air molecules more violently?

The undersides

The uppersides

All parts of the wings


Low pressure on the top of the plane plus high pressure on the bottom means:

The plane has lift

The plane glides

The plane drops


What direction do engines push air?

Forwards and backwards

Forwards

Backwards


For the most efficient engine it is good to have:

A really big propeller and a really small jet

A really big jet and a really small propeller

A really big jet and propeller

E AÍ, COMO FOI?

Tomara ter aproveitado o desafio!

Wishes..

Fab