Fluid Dynamics and The Law of Conservation of Energy

Fluid dynamics is best described as:

• the study of water in motion

• the study of liquids and gases in motion

• the study of gases in motion

• the study of air in motion

Hydrodynamics focuses on the movement of:

• air

• liquids

• water

• currents

When the movement of water brings nutrient-rich, colder waters to the surface, this is called:

• Aerodynamics

• Stratification

• Downwelling

• Upwelling

Which of the following is an important property in determining how a fluid moves:

• Density

• Temperature

• Pressure

• All of these are important

Which of the following liquids would have the greatest density?

• milk

• sugar water

• molasses

• hot tea

As you move deeper into the ocean, hydrostatic pressure:

• increases

• decreses

The law of conservation of energy states that in ________________, energy cannot be created or destroyed, but it can be converted from one form to another.

• a closed system

• an open system

• the atmosphere

• the ocean

Why isn’t the atmosphere a closed system?

• Closed systems only exist in theory

• Closed systems are only for liquids, not gases

• The laws of physics do not apply to the atmosphere

• Gases from Earth escape from the higher realms of the atmosphere

Potential energy is stored energy, while kinetic energy is energy of:

• position

• motion

• height

• shape

This is power derived from the energy of falling or fast-running water, which may be harnessed for useful purposes:

• solar power

• wind power

• hydropower

• geothermal power