Final answer:
The term 'Track' refers to the actual flight path of an aircraft over the ground, measured from True North. It is distinct from the heading, which is the direction in which the nose of the aircraft points and can differ from the track due to wind influence.
Step-by-step explanation:
The term that describes the actual flight path over the ground measured clockwise from True North is Track. When considering an airplane's navigation, it's important to differentiate between its heading and its track. The heading is the direction the aircraft's nose is pointed, which can be different from the track due to the influence of the wind. If the airplane experiences a crosswind, the pilot must adjust the heading to compensate for wind drift in order to maintain the intended track over the ground.
In the various scenarios provided, we see examples where wind affects the airplane's velocity relative to the ground. Pilots need to consider their speed and heading in relation to the wind to ensure their track brings them to their intended destination. By using vector diagrams and calculations, a pilot can determine the correct heading to counteract the wind, known as 'crabbing,' to maintain the desired track.