Unit 1 Vocab

Question 1

Pertaining to air

Answer 1

Aero

Question 2

Relating to the forces of air in motion

Answer 2

Aerodynamics

Question 3

The science of flight within the atmosphere

Answer 3

Aeronautics

Question 4

A combination of aeronautics and space

Answer 4

Aerospace

Question 5

A mixture of gases that combine approximately 78% nitrogen, 21% oxygen, and 1% other gases

Answer 5

Air

Question 6

Any machine that is capable of flying through the air; included are ultralights, airplanes, gliders, balloons, helicopters, hangliders, and parasails

Answer 6

Aircraft

Question 7

An aircraft that is kept aloft by the aerodynamic forces upon its wings and is thrust forward by a means of propulsion

Answer 7

Airplane

Question 8

A component, such as a wing, that is specifically designed to produce lift, thrust, or directional stability

Answer 8

Airfoil

Question 9

A place on either land or water where aircraft can land and take off for flight

Answer 9

Airport

Question 10

Height above sea level or ground level expressed in units

Answer 10

Altitude

Question 11

The art, science, and technology of flight within the atmosphere

Answer 11

Aviation

Question 12

A person who operates an aircraft in flight

Answer 12

Aviator

Question 13

The curved part of an airfoil from its leading to trailing edge

Answer 13

Camber

Question 14

A line drawn through an airfoil from its leading to trailing edge

Answer 14

Chord

Question 15

The downward movement of air behind a wing in flight

Answer 15

Downwash

Question 16

A force which slows the forward movement of an aircraft in flight

Answer 16

Drag

Question 17

Forces in motion

Answer 17

Dynamic

Question 18

The natural force pulling everything to Earth

Answer 18

Gravity

Question 19

The front part of a wing or airfoil

Answer 19

Leading Edge

Question 20

The upward force that opposes gravity and supports the weight of an aircraft

Answer 20

Lift

Question 21

The flow which moves opposite the flight path of an airplane

Answer 21

Relative Wind

Question 22

The force which moves an aircraft forward in flight

Answer 22

Thrust

Question 23

The upward movement of air ahead of the wing in flight

Answer 23

Upwash

Question 24

A spinning column of air that is created behind the wingtip as a result of air moving from an area of high pressure on the bottom to an area of low pressure on top

Answer 24

Vortex

Question 25

Air in motion

Answer 25

Wind

Question 26

Fluid motion between regions of unequal heating

Answer 26

Convection

Question 27

Mass in a given volume

Answer 27

Density

Question 28

A mathematical relationship between the distance an aircraft will glide forward to the altitude loss

Answer 28

Glide Ratio

Question 29

The average rate at which temperature decreases with an increase in altitude

Answer 29

Lapse rate

Question 30

The art of staying aloft by exploiting the energy of the atmosphere

Answer 30

Soaring

Question 31

The atmosphere's resistance to vertical motion

Answer 31

Stability

Question 32

The height or distance above a reference plane

Answer 32

Altitude

Question 33

A column of air that moves upwards

Answer 33

Thermal

Question 34

Usually a single-engined airplane that will pull a glider from the ground to an altitude where it can be released

Answer 34

Tow plane

Question 35

A waving action with strong up and down motion started as air moves across mountain ranges

Answer 35

Wave

Question 36

instrument to provide the height of the balloon above sea level

Answer 36

Altimeter

Question 37

An aircraft that uses lighter-than-air gas for its lift, with no built-in means of horizontal control

Answer 37

Balloon

Question 38

The heat source for filling the envelope with hot air

Answer 38

Burner

Question 39

To rise or float on the surface of water or within the atmosphere

Answer 39

Buoyancy

Question 40

The top of the hot air balloon's envelope

Answer 40

Crown

Question 41

The main body of the balloon, usually made of nylon, that is filled with lighter-than-air gas

Answer 41

Envelope

Question 42

A wicker basket, hanging below the envelope, used to transport passengers and propane tanks

Answer 42

Gondola

Question 43

One of several vertical panels that make up the envelope

Answer 43

Gore

Question 44

The name of the two French brothers who created the first successful, manned, hot air balloon in 1783

Answer 44

Montgolfier

Question 45

located in the top of the balloon's envelope that allows it to be deflated

Answer 45

Parachute panel

Question 46

A lightweight, low carbon fuel used in hot air balloon burners

Answer 46

Propane

Question 47

an instrument which measures the temperature within the envelope

Answer 47

Thermistor

Question 48

an instrument to determine the rate of climb or descent; sometimes referred to as vertical velocity indicator

Answer 48

Variometer