3 - Forces

Question 1

Coriolis Force (CF)

Answer 1

The movement of rotating objects

Deviates horizontal motion to the right and to the left (Northern -> Southern)

Proportional to wind speed and the sense of Earth’s rotation at different latitudes (maximum at the poles, dies not exist at the equator)

Question 2

Centrifugal Force

Answer 2

The apparent outward force on a mass when it is rotated

Combines with gravity to give the so-called apparent gravity

Question 3

Navier-Stokes Equations

Answer 3

Equations that describe motion of all gases and liquids

In qualitative form

Forces can be positive or negative

PFG_x,y,z + COR_x,y,z + VIS_x,y,z

Question 4

Vector

Answer 4

Magnitude + direction, determining the position of one point in space relative to another

Two pieces of information (velocity, force)

Wind = vector

Question 5

Scalar

Answer 5

Magnitude

One piece of information (temp., pressure)

Question 6

Newton Laws

Answer 6

1 - No movement = no net force
2 - F = ma (force = mass*acceleration)

Question 7

Real Force

Answer 7

Forces that exist regardless of the planet’s rotation
Gravity, pressure gradient force, friction

Question 8

Apparent Force

Answer 8

Forces that are consequence of the planet rotating

Question 9

Gravity

Answer 9

Force that acts between two objects with a mass
Exclusively acts on the vertical axis

Question 10

Pressure Gradient Force (PGF)

Answer 10

From a place with a higher pressure to a place with a lower pressure, works in all direction

Question 11

Friction

Answer 11

Movement affected to its proximity to a surface

Question 12

Centrifugal

Answer 12

Caused by the Earth’s rotation