science
WHAT IS THE DEFINITION OF AERODYNAMICS
WHAT IS THE DEFINITION OF LIFT
AERODYNAMICS:Is the study of the motion of air, particularly when affected by a solid object such as an airplane win. It involves topics covered in the field of fluid dynamics and its subfield of gas dynamics and is an important domain of study in aeronautics
LIFT:
Raise to a higher position or level
Example he lifted his trophy over his head
WHAT IS THE DEFINITION OF THRUST
WHAT IS THE DEFINITION OF PROPEL
THRUST:Push (something or someone) suddenly or violently in the specified direction
Example she thrust her hands into her pockets
PROPEL:Drive, push or cause to move in a particular direction typically forward.
Example the boat is propelled by using a very long paddle.
IF A BIRD IS FLYING STRAIGHT AND STEADY IT MEANS
a)all the forces are balanced
b)all the forces are unbalanced
c)the lift is equal to the drag
a
BRIEFLY EXPLAIN HOW AIR TAKES UP SPACE
Air surrounds the earth. The earth’s atmosphere is like a blanket that covers the earth. The invisible air is found everywhere.
COMPRESSION OR INSULTATION OF AIR
KEEPING THE HEAT INSIDE YOUR HOME - INSULTATION
A SLEEPING BAG USING MANY LAYERS TO KEEP YOU WARM AT NIGHT - INSULTATION
RUBBER TIRES ON A CAR BEING USED FOR DRIVING - COMPRESSION
AIR TANKS USED FOR SCUBA DIVING - COMPRESSION
A WINTER JACKET USED TO KEEP YOU WARM ON COLD DAYS - INSULTATION
AN AIRPLAE CABIN THAT USES PRESSURIZED AIR TO HELP PEOPLE BREATHE WHEN FLYING - COMPRESSION
WHAT IS THE DEFINITION OF AIR
WHAT IS THE DEFINITION OF WEIGHT
AIR:The invisible gaseous substance surrounding the earth, a mixture mainly of oxygen and nitrogen.
WEIGHT:In science and engineering, the weight of an object is a quantity associated with the gravitational force exerted on the object by other objects in its environment, although there is some variation and debate as to the exact definition
IF THE FOUR FORCES ARE BALANCED
a)the object is unbalanced
b)the object remains stationary or in constant motion
c)the objects speed or movement will change
b
ADJUST TILT OR ANGLE OF ATTACK
If the wing is titled up - angle of attack is raised, speed is decreased
If the wing is titled down - lift is raised, speed is increased
BRIEFLY EXPLAIN HOW AIR HAS MASS
Because air is made up of matter and it is composed of molecules and atoms like gas, dust, pollen, water, vapour and other particles. All of those particles have mass and when they are added together it make the mass of air.
WHAT ARE THE 4 FORCES OF FLIGHT
LIFT ⬆️
DRAG ⬅️
THRUST ➡️
WEIGHT ⬇️
WHAT IS THE DEFINITION OF AIR PRESSSURE
WHAT IS THE DEFINITION OF GLIDE
AIR PRESSURE:The pressure within a container due to the compression of atmospheric gases.
GLIDE:Move with a smooth continuous motion, typically with little noise
Example: a few glondalas glided past
IF THE FOUR FORCES ARE UNBALANCED
a)the object is unbalanced
b)the object remains stationary or in constant motion
c)the objects speed or movement will change
c
TRUE OR FALSE
1.AIR IS INVISIBLE 2.AIR IS ALWAYS COLD 3.AIR IS FRIENDLY 4.AIR HAS MASS 5.AIR CAN BE COMPRESSED
AIR IS INVISIBLE - TRUE
AIR IS ALWAYS COLD - FALSE
AIR IS FRIENDLY - TRUE
AIR HAS MASS - TRUE
AIR CAN BE COMPRESSED - TRUE
BRIEFLY EXPLAIN HOW AIR HAS PRESSURE
Gas molecules travel quickly and move in all directions. Since air is mainly gas it has the same properties. For example when you put air in a container the air will put pressure on the container’s walls.
REDUCE WEIGHT
Passengers, fuel, and cargo are all considered when trying to reduce weight of an airplane
Lighter weight may take-off and fly efficiently
WHAT IS THE DEFINITION OF AIRPLANE
WHAT IS THE DEFINITION OF FLIGHT
AIRPLANE:A flying vehicle that has fixed wings and engines or propellers that thrust it forward through the air.
FLIGHT:The action or process of flying through the air
Example: an eagle in flight
IF A PILOT INCREASES THRUST
a)the plane will accelerate forward
b)the plane will begin to drag
c)the plane will stay stationary
a
TRUE OR FALSE
1.AIR SMELLS REALLY BAD ALL THE TIME 2.AIR IS COLOURFUL 3.AIR IS ALWAYS HOT 4.AIR IS AFFECTED BY TEMPERATURE 5.AIR IS HEAVY
AIR SMELLS REALLY BAD ALL THE TIME - FALSE
AIR IS COLOURFUL - FALSE
AIR IS ALWAYS HOT - FALSE
AIR IS AFFECTED BY TEMPERATURE - TRUE
AIR IS HEAVY - TRUE
BRIEFLY EXPLAIN HOW AIR IS AFFECTED BY TEMPERATURE
The motion of air particles is influenced by temperature. The higher the temperature the faster the particles move and the greater the pressure. But as the temperature of the air cools down the slower the particles move.
MANAGE THRUST
If the pilot raises the thrust, the plane will accelerate and if thrust is decreased it will decelerate
Thrust is generated by the plane’s engines and propellers
WHAT IS THE DEFINITION OF COMPRESS
WHAT IS THE DEFINITION OF DRAG
COMPRESS:To press or squeeze together
To reduce in size quantity or volume as if by squeezing compress a computer file
DRAG:Pull, (someone or something) along forcefully roughly or with difficulty
Example we dragged the boat up the beach
TAIL ELEVATORS ARE USED TO DO WHAT IN AIRPLANES?
a)create drag in the airplane
b)create lift
c)steer an airplane up or down
c
TRUE OR FALSE
1.AIR IS 100% CARBON DIOXIDE 2.AIR HAS PRESSURE 3.AIR IS MADE UP OF MOSTLY NITROGEN AND OXYGEN 4.AIR IS EVERYWHERE 5.AIR IS NOWHERE 6.AIR TAKES UP SPACE
AIR IS 100% CARBON DIOXIDE - FALSE
AIR HAS PRESSURE - TRUE
AIR IS MADE UP OF MOSTLY NITROGEN AND OXYGEN - TRUE
AIR IS EVERYWHERE - TRUE
AIR IS NOWHERE - FALSE
AIR TAKES UP SPACE - TRUE
BRIEFLY EXPLAIN HOW AIR CAN BE COMPRESSED
Air like any other gas can be compressed. An example is before you get in the car you can check the pressure of the air in your wheels but if the car is full of people than the air in the wheels slowly compress out of the wheels because there is more weight. So if there was one person in the car it would not go out as quickly and as much.
CONTROL DRAG
Pilots create drag when landing; flaps and lowered gear help slow the plane down and allow for a steeper approached (shorter landing)
Wings, tail, and body of an airplane are designed to reduce drag.