Aviation unit 2

Which of the following represents contribution, Greek myths, made to civilization today

Inspiration for human flight

How gliders produce lift even though they don't have engines

A glider produces thrust by converting potential energy into kinetic energy As the glider falls it's gravitational potential energy is converted into kinetic energy this increases the gliders speed

Which type of aircraft performs best with a symmetrical air foil

Aerobatics aircraft

Both of the wright brother and da vinci based their theories of flight from observation of ______

Animals in flight

Why is air density important when using hot balloons

As air inside the balloons gets warmer the density in the air and the balloon decreases causing it to rise

A pilot descends a hot air balloon by allowing air to escape through ———

As the parachute vals

Hot air balloons rise ____ lifting the balloon

Becomes less defense

Which concept best illustrates the mechanics, flying, hot air balloon

Density and buoyancy

In early aviation research which was the most important contribution of sir George cayleigh

Described the underline principles and forces of flight

When the four forces of flight are balance the flying object is said to have ———

Equilibrium

Leonardo da Vinci flying machine in the orthopter was an invention to this

Flapped it's wings like a bird

Which is an aircraft whose flight does not depend principally on a engine

Glider

Explain how hot air balloons crest left

Hot air balloons experience lift due to arch principal because hot air is less dense and thus more buoyancy then cooler air

What is the purpose of the burner of a hot air ballon

It gets then air inside the balloon causing it to rise

For modern day gliders did what Bernoulli's principal demonstrates?

It removed faster over the top of the wing in the air below the wings

Birds generate ——— by flapping there wings

Lift and thrust

Movement of a wing through the air creates——- on the top of the wing as compared to the bottom of the wing allowing for lift

Lower pressure

What does a camver of an air foil refer to

The curve of the wing

What the wright brothers learn from building a wind tunnel

The wright brothers built a wind tunnel to study why their air foil designs did achieve the same theoretical lift predicted by autto Lilienthal and others

Which statement accurately portrays the wright brothers

They approach problems systematically and methodically controlling all other variables

Explain how Ancient Greek stories modern in aviation

They inspired humans to build flying machines Humans have watched birds fly and tempted to imnalute the use of wings and flight Stories been told in literature, art and science

Explain how the wright brothers used the engineering practices to successfully achieve life when other engineers failed

They started by delivering by understanding the controlling their aircraft was the hardest challenge they knew what question to focus their energies on

Why dis the wright brothers include a rutter in their airplane design?

To prevent the glider from spinning out of control

Which of the following best explains why wind tunnels are used in the testing the design of aircrafts?

To test scale models in air foils in aircraft

What part of the bird most resembles the propeller on a aircraft

Wings