1
The shaping of an object so that a gas or liquid will move easily around it.
2
Drag or friction that acts to slow down an object as it moves through a gas or liquid.
3
A machine that floats on a cushion of compresses air.
4
Curved blade that, when spun around quickly, forces an aircraft forward – a propeller is a twisted airfoil.
5
the force that resists motion of one body over or through another.
6
The force with which gravity pulls on an object – technically it should be expressed in Newtons but is often measured in units of mass such as grams or kilograms
7
The force that causes an object to move forward.
8
A force of attraction that every mass in the universe exerts on other masses. This force increases with increase in mass of an object.
9
An aircraft that flies without an engine - its pilot tries to find updrafts of air to gain height and extend the flight.
10
Upward force, which acts against the force of gravity – reducing air pressure on the topside of an airfoil, produces lift.
11
Rotation of the fuselage
12
The amount of matter in an object.
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