Knowledge 12 gb second

a vehicle that can travel through air and that is supported either by its own lightness or by the action of the air against the surface.

• aviation

• aircraft

• blades

• legend

the flying of an aircraft

• aircraft

• aviation

• curve

• legend

the propeller is made up of ______.

• propeller

• legend

• aviation

• blades

a small aircraft without an engine is called a

• glider

• airplane

• car

• myth

The shape of an airplane wing causes the air above the wing to travel slower than the air below the wing.

• True
• False

an upward force against an airplane wing is called _____?

• determined

• legend

• lift

A description of an event by someone who was there is considered

• Primary source

• Secondary source

A description of an event based on research told by someone who was NOT there is a

• Primary Source

• Secondary Source

A journal is considered a

• primary source

• secondary source

a textbook is an example of a

• primary source

• secondary source