Quiz on Angular Momentum and Vorticity

What is one of the applications of angular momentum and potential vorticity mentioned in the outline?

• Topographic steering

• Hydrostatic balance

• Thermal wind

• Wind waves

Which topic is covered in Lecture 17?

• Tides and tsunami

• Wind forcing

• Thermal wind

• Geostrophic balance

Tags

NGSS.MS-ESS2-6

What is vorticity a measure of in fluid dynamics?

• The speed of the flow

• The density of the fluid

• The "swirlyness" of the flow

• The temperature of the fluid

According to the right-hand rule, what is the sign of vorticity when the rotation is counter-clockwise?

• Negative

• Neutral

• Zero

• Positive

How is vorticity related to the rotation speed of a pinwheel in a flow?

• Vorticity is half the rotation speed

• Vorticity is equal to the rotation speed

• Vorticity is twice the rotation speed

• Vorticity is unrelated to the rotation speed

What is the symbol used to represent vorticity in oceanography?

• ω (omega)

• ζ (zeta)

• θ (theta)

• α (alpha)

In oceanography, which component of vorticity is primarily of interest?

• Horizontal component

• Vertical component

• Diagonal component

• Lateral component

What is the unit of vorticity?

• m/s

• s

• s⁻¹

• m²/s

What is the current speed at a radius $ R $ from the center of a rotating cylinder of water?

• s = RΩ

• s = 2RΩ

• s = \frac{R}{Ω}

• s = Ω

How is the circulation $ C $ around an area defined?

• The net velocity around the boundary times the perimeter

• The net velocity around the boundary divided by the perimeter

• The net velocity around the boundary plus the perimeter

• The net velocity around the boundary minus the perimeter