Tuesday, 25 July 2017

Scientific explanation

               How  do planes fly?

How do planes fly? Have you ever wished you could BUT you can't and planes can? I wonder why ?

Lift is a force, lift works against weight. Lift is created mostly by the wings, lift makes objects come  off the ground. Weight works against lift. Weight helps the plane land, it pulls it down to earth. Thrust works against drag. Thrust is generated by the engines to move the aircraft through the air.

Lift and thrust get the plane off the ground.  Thrust holds an aircraft in the air. Drag is important when the plane is landing, drag slows the plane down. Weight is the force that holds the plane to the ground, weight is important when the plane is landing so the plane doesn't stay in the air.

In conclusion it is clear that when planes are flying they must have the four forces working on them. It is clear that humans can't fly because we don't have enough lift and thrust to overcome gravity.

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