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block

The property of inertia is said to be:

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the opposition which a body offers to a change in motion.

the quantity of motion possessed by a body.

the energy possessed by 'a body because of its motion.

that every action has an equal and opposite reaction.

none

Why does increasing speed also increase lift?

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The increased velocity of the relative wind overcomes the increased drag.

The increased impact of the relative wind on an aerofoils lower surface creates a greater amount of air being deflected downward.

The increased speed of the air passing over an aerofoils upper surface decreases the static pressure, thus creating a greater pressure differential between the upper and lower surface.

Increasing speed decreases drag

none

The angle of attack of an aerofoil section directly controls:

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angle of incidence of the section.

distribution of positive and negative pressure acting on the section.

amount of airflow above and below the section.

The angle relative to the horizontal datum

none

Why does increasing speed also increase lift?

Select the correct answer(s).  

(0/0)

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The increased velocity of the relative wind overcomes the increased drag.

The increased speed of the air passing over an aerofoils upper surface decreases the static pressure, thus creating a greater pressure differential between the upper and lower surface.

Increasing speed decreases drag.

The increased impact of the relative wind on an aerofoils lower surface creates a greater amount of air being deflected downward.

none

Weight is the result of:

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how much matter the object contains.

the force on mass due to gravity.

the action of a falling mass.

the rate of mass per unit area.

none

The angle between the chord line of an aerofoil section and the relative wind is known as the angle of:

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incidence.

attack.

lift.

Sweepback

none

The angle between the chord line of an aerofoil section and the relative wind is known as the angle of:

Select the correct answer(s).  

(0/0)

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incidence.

lift.

Sweepback

attack.

none

When the angle of attack of a positively cambered aerofoil is increased, the centre of pressure will:

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remain unaffected.

move back along the chord.

have very little movement.

move forward along the chord line.

none

The definition of power is:

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the rate of movement per second.

the rate of force applied.

the rate of doing work.

the rate of applied force.

none

The point on an aerofoil section through which lift acts is the:

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centre of gravity.

aerodynamic centre.

centre of pressure.

midpoint of the chord.

none

The angle of attack of an aerofoil section directly controls:

Select the correct answer(s).  

(0/0)

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distribution of positive and negative pressure acting on the section.

amount of airflow above and below the section.

The angle relative to the horizontal datum

angle of incidence of the section.

none

About which point does an aircraft rotate:

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the rudder.

the wings.

the centre of gravity

the main undercarriage.

none

The point on an aerofoil section through which lift acts is the:

Select the correct answer(s).  

(0/0)

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aerodynamic centre.

centre of gravity.

centre of pressure.

midpoint of the chord.

none

Why does increasing speed also increase lift?

Select the correct answer(s).  

(0/0)

---

The increased impact of the relative wind on an aerofoils lower surface creates a greater amount of air being deflected downward.

The increased velocity of the relative wind overcomes the increased drag.

Increasing speed decreases drag.

The increased speed of the air passing over an aerofoils upper surface decreases the static pressure, thus creating a greater pressure

none

An aircraft's mass is a result of:

Select the correct answer(s).  

(0/0)

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its weight.

how big it is.

its volume.

how much matter it contains.