Weather Review

Which best explains why winds at the beach change direction between day and night?

• Temperatures over water and land change

• Warm air over land sinks and stays in place over the land

• Cool air rises and is replaced by warm air from the ocean

• cool air sinks and stays in place over land

Which will most likely be produced by a low pressure system?

• warm temperatures

• cloudy conditions

• clear conditions

• cool temperatures

Which best explains how air masses move across the United States?

• The prevailing westerlies move sir masses from west to east but may be deflected by the jet stream.

• The trade winds move air masses from west to east across the United States

• The jet stream moves air masses from the Pacific Ocean across the United States

• The warm air from the Gulf Stream causes air masses to move from the Atlantic Ocean to the Pacific Ocean

Which has the greatest effect on wind speed?

• precipitation

• cloud cover

• wind direction

• air pressure

Tammy lives in the southern hemisphere. What season does she most likely experience in December?

• spring

• summer

• winter

• autumn

On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area. What conditions will this system most likely bring to the area?

• stormy

• sunny

• snowy

• hot

Which best describes a characteristic of the jet stream?

• It forms a boundary between a cold air mass and a warm air mass

• It creates the high winds around the eye of a hurricane

• It forces the hot air along the equator to rise to areas in North America

• It causes high pressure air masses to rotate clockwise

The weather forecast indicates that a warm front will be moving into the area. Which type of weather will most likely result?

• clear skies and cold temperatures

• clear skies and hot temperatures

• cloudy skies and rainy weather

• heavy snow and ice

What causes warmer than normal temperatures in the Pacific Ocean, drought in the western United States, and flooding on the Pacific coast of South America?

• the Gulf Stream

• the jet stream

• La Nina

• El Nino

What is the most likely effect of the jet stream moving south of North Carolina?

• North Carolina will experience tropical weather conditions

• North Carolina will experience hot, dry weather

• North Carolina will experience mild weather

• North Carolina will experience cold weather