PPL Met - Wind DONE

What is the fundamental cause of wind?

• Coriolis Force

• Pressure Gradient

• Pressure lapse rate

• Unequal solar radiation

Why does wind not move from H to L pressure?

• Pressure gradient

• Coriolis force

• Pressure lapse rate

• Temperature differential

What direction is air deflected in the southern hemisphere due to coriolis force?

• Left

• Right

What direction is air deflected in the northern hemisphere due to coriolis force?

• Left

• Right

What force is greater when wind curves clockwise around a low?

• Coriolis force

• Pressure gradient

What is geostrophic wind?

• When wind blows along curved isobars

• Wind that blows from low pressure to high pressure

• When wind blows parallel to straight isobars

• Wind found in a tornado

What is gradient wind?

• When wind blows along curved isobars

• Wind that blows from low pressure to high pressure

• When wind blows parallel to straight isobars

• Wind found in a tornado

Why is wind generally weaker at Earths surface?

• Friction layer

• Friction force

• Coriolis force

• Pressure gradient

Reduction in wind strength. What happens to the strength of the coriolis force and pressure gradient force?

• Reduced, same

• Increased, same

• Same, reduced

• Same, increased

What does the extent of the friction layer depend on? (Choose all that apply)

• Temperature

• Terrain

• Cloud cover

• Time of day