Topic 2 Lesson 2 Test

What is condensation?

• The process of water vapor changing to liquid water.

• The evaporation of liquid water.

• The formation of ice from liquid water.

• The process of water freezing in the atmosphere.

What must be present in the atmosphere for condensation to occur?

• High temperatures.

• Tiny particles like dust or salt.

• Large bodies of water.

• Strong winds.

What is the dew point?

• The temperature at which water boils.

• The temperature at which condensation begins.

• The point where ice melts.

• The temperature at which rain falls.

If the dew point is below freezing, what may form?

• Rain.

• Frost.

• Mist.

• Fog.

What is relative humidity?

• The total amount of water in the air.

• The amount of water vapor in the air compared to the maximum it can hold.

• The temperature of the air.

• The pressure of the air.

How is relative humidity usually expressed?

• In grams.

• In degrees Celsius.

• As a percentage.

• In millimeters.

What does a psychrometer measure?

• Wind speed.

• Atmospheric pressure.

• Relative humidity.

• Temperature.

When relative humidity is high, what happens to the wet-bulb temperature?

• It rises significantly.

• It falls slightly.

• It does not change much.

• It becomes the same as the dry-bulb temperature.

What forms when water vapor condenses in the atmosphere?

• Rivers.

• Clouds.

• Lakes.

• Oceans.

What is precipitation?

• Water vapor in the air.

• Water that evaporates from the ground.

• Any form of water that falls from clouds.

• Water that condenses on surfaces.