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# Air and Flight

What you have you ever wanted to know about air, planes (e.t.c.) In this presentation you will learn about everything!!
by

## Beth Mulder

on 16 January 2013

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#### Transcript of Air and Flight

Beth Air and Flight How does air flow around a wing? Air Concepts 4 Forces of Flight Adaptations of Birds to Fly What Reduces Drag What happens when drag
becomes greater than thrust? Air flows around a wing with Bernoulli's Principle.
Which means Higher pressure on the bottom and lower pressure on the top. When air flows around an airplane wing it creates pressure. Lift: Lift opposes weight. Newton's Laws and Bernoulli's Principle generate lift.

Weight:Weight opposes lift. Weight and lift are equal when a plane flies level at constant velocity.

Thrust:Thrust opposes drag. The engine creates thrust and moves the plane forward.

Drag:Drag opposes thrust. Imagine sticking your hand out the window of a moving car and flying your hand. Lift and wing Design
On an airplane wing there is lower
pressure on the top and higher pressure on
the bottom. So Bernouli's Principle! Feet: Webbed landing geer.
Wings: Help them generate thrust.
Narrow Bodies: They are very streamline so they
can fly faster and more streamline. Thrust reduces drag because thrust is what makes
the plane go forward, and drag is what makes the
plane slowdown. If drag is greater than thrust, then the object (car, rocket, etc) Will begin to slow down until they become equal, or the thrust becomes greater than the drag. We did lots of experiments like dropping books with a ruler. That was for weight/gravity. We had to see which dropped first. That calculated the weight of what we dropped. (example) They landed on the ground at the same time. We also dropped them at the same height and time.
For thrust we did balloon rockets, and for drag we made parachutes. For lift we put paper on textbooks and blew on the paper to see what would happen. is an aircraft's main body
section that holds crew and
passengers or cargo. An engine or motor is a machine designed to convert energy into useful mechanical motion. A spinner is an aircraft component, a streamlined fairing fitted over a propeller hub or at the center of a turbofan engine. A wing is a type of fin with a surface that produces lift for flight or propulsion through the atmosphere, or through another gaseous or liquid fluid. A cockpit or flight deck is the area, usually near the front of an aircraft, from which a pilot controls the aircraft. Elevators are flight control surfaces, usually at the rear of an aircraft, which control the aircraft's orientation by changing the pitch of the aircraft A rudder is a device used to steer a ship, boat, submarine, hovercraft, aircraft or other conveyance that moves through a medium (generally air or water). An aileron (French for 'little wing') is a hinged flight control surface usually attached to the trailing edge of each wing of a fixed-wing aircraft. gives stability to the aircraft, in a similar way to the feathers on an arrow What are 3 similarity's of birds and planes? Lift Thrust Drag both airplanes and birds have adjustable wings,
and tail,and have a fuel source, for birds it is fish ,
berrys , and perhaps nuts, for planes it is many
different fuels. Weight Hello We say daeo daylight comes and we dont want to go home. let sgo we losen control daylight comes and we are not going home. Air Pressure As we know, the air in the
atmosphere
is made up of a number of gases.
These gases press down on the
Earth’s surface, exerting a force
that we call atmospheric pressure
or air pressure. it actually presses
down very hard – roughly equivalent
to the force of an elephant balancing
on a desk! Streamlining Airplanes are streamlined in order to reduce
drag (coefficient of friction). This allows
for less resistance, less fuel consumption,
and greater speed. Air Compression Air compression is forcing air into a chamber who's volume is reduced to compress air. Air is compressed in different ways...Such as air is compressed into a container or an air compressor. Pitch,Roll and Yaw Roll: Rotation around the front-to-back axis is called roll.

•Rotation around the side-to-side axis is called pitch.

•Rotation around the vertical axis is called yaw. Hovercrafts A hovercraft is known as an
air cushion vehicle or ACV.A hovercraft
is capableof travelling over land, water
mud or ice and other surfaces both at
speed and when stationary. I hope you
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