Air & Pressure
The higher you go, this happens to air pressure.
It gets lower
This force pulls airplanes down.
Gravity
Planes can fly because of the ______ of their wings.
Shape
Mass is the amount of this in an object.
Matter
Name one living thing AND one non-living thing that can fly.
Birds and hot air balloon
What happens to air pressure as you go closer to the ground?
It increases / gets higher
This force moves an airplane forward.
Thrust
The bottom of the wing has ______ moving air.
Slower
Weight is caused by this force.
Gravity
Name one positive effect AND one negative effect of airplanes.
Fast travel & pollution
Air always moves from high pressure to this type of pressure.
Low pressure
This force pushes against motion and slows things down.
Drag
Air moves faster over this part of the wing.
The top
This stays the same everywhere: mass or weight?
Mass
What do birds use to create thrust?
Flapping their wings
What happens to air particles in high pressure areas?
They are closer together
This force keeps an airplane in the air.
Lift
This wing shape helps create lift.
Airfoil
This can change depending on where you are.
Weight
What must be greater for a plane to take off: lift or gravity?
Lift
Give one real-life example of air pressure changing.
Ears popping / airplane / elevator
These are the TWO forces that always work against flight.
Gravity and drag
This principle explains how air pressure differences create lift.
Bernoulli’s Principle
You would weigh less here because gravity is weaker.
The moon
Who invented the first successful airplane?
The Wright brothers