Lift
What part of a plane generates lift?
The wings
What is drag?
Air resistance
What produces thrust in a plane?
The engines/propeller
What works opposite to gravity (weight)?
Lift
How does a helicopter generate lift?
Why is drag important for flight?
It allows the plane to land safetly
What produces the thrust for a bird to fly?
The Third-Equal and Opposite reaction
Why is it important to for a plane to pull up before it lands?
Because the weight is pulling it down, if thrust is also pulling it towards the ground on an angle it could crash because of too much force in a downward direction. It needs to balance lift an weight to land safely.
What force does lift force need to be greater than in order for an object to gain altitude (height)?
Weight.
Parachutes.
Why is thrust important?
Why is weight (gravity) important to flight?
It allows the plane to land and rise safely
How do wings help a plane fly?
They increase lift. They use air pressure (greater underneath the wings than on top) to help a plane get altitude (height).
How does a parachute slow down an airplane?
more drag
Because they need to build pressure under the wings before they can achieve lift. They also takeoff at an angle so the thrust becomes slightly angled up once the plane takes off.
Would the weight of the plane and the mass of it be the same?
No, mass is the the material where as the weight is the force of gravity on the aircraft
Name one of Newtons laws.
First law - an object will not change its motion unless a force acts on it.
Second law- the force on an object is equal to its mass times its acceleration.
Third law -every action has an equal and opposite reaction.
What fluid produces drag?
Air
What is necessary for a rocket ship to produce a lot of thrust?
The force of the thrust must be greater than the weight of the rocket
When a helicopter is floating still in the air, the forces are at __________.