Oceanography Chapter 5

The density curve for high latitudes shows ________ density at the surface and ________ density at depth.

decreased; increased

As the salinity of seawater increases, its:

density increases

Of all the following processes which on increases the salinity of water

evaporation

A beaker contains a mixture of ice and pure liquid water at 0oC. What happens to the temperature of the liquid water as heat is added?

It remains constant until the ice melts, and then it begins to rise

Sea surface salinity is greatest at which of the following latitudes?

25 degrees

The average salinity of typical seawater is

3.5%

Which of the following best describes hydrogen bonding?

Electrostatic attraction

Which property of water causes coastal communities to have only moderate differences in daily highs and lows when compared to inland communities?

High heat capacity

Which of the following best defines temperature

The direct measure of the average kinetic energy of a substance's molecules.

Which of the following best defines heat

The energy transfer from one body to another due to a difference in temperature.

Latent heat is the quantity of heat gained or lost as a substance undergoes a _______.

change in state

Which of the following occurs at the same temperature as the boiling point?

freezing point

A layer of rapidly changing salinity with depth is called a ____.

halocline

In comparison to most other liquids, the heat capacity of liquid water is:

higher than other liquids

The transfer of water between the atmosphere, the oceans, and the continents is known as the:

hydrologic cycle

The salinity curve for low latitudes shows ________ salinity at the surface and ________ salinity at depth.

increased; decreased

The surface tension of water _____.

increases as density decreases

Many of the unique properties of water are attributed to the fact that water:

is a polar molecule

An area of the ocean where rapid change in ocean density occurs with a change in depth is the:

pycnocline

The states of matter in which water exists is primarily determined by:

temperature

Which of the following best defines latent heat

the energy needed to break the intermolecular bonds that hold molecules in place

Hydrogen bonds form between neighboring water molecules because of

the polarity of water molecules

Which of the following best defines melting point?

the temperature at which a solid changes to a liquid

A rapid change in ocean temp with a change in depth occurs in the ____.

thermocline