01c NGS Ch 11 - Section 1: Weather Patterns

What is a high-pressure system?

• A small body of air with high pressure at its center

• A large body of circulating air with high pressure at its center

• A large body of circulating air with low pressure at its center

• A small body of air with low pressure at its center

Answer explanation

A high-pressure system is defined as a large body of circulating air with high pressure at its center, which influences weather patterns by promoting clear skies and stable conditions.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What type of weather is typically associated with a low-pressure system?

• Sunny and clear

• Cloudy and rainy

• Cold and snowy

• Hot and dry

Answer explanation

Low-pressure systems are typically associated with rising air, which leads to cloud formation and precipitation. Therefore, the correct answer is 'Cloudy and rainy', as these conditions are common in such systems.

Tags

NGSS.MS-ESS2-5

What is a maritime air mass?

• A cold air mass

• A warm air mass

• An air mass that forms over water

• An air mass that forms over land

Answer explanation

A maritime air mass is defined as an air mass that forms over water. This is important because it influences the temperature and humidity of the air, making 'An air mass that forms over water' the correct choice.

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NGSS.MS-ESS2-5

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Which type of front is formed when a cold air mass moves toward a warm air mass?

• Occluded front

• Stationary front

• Cold front

• Warm front

Answer explanation

A cold front forms when a cold air mass moves toward a warm air mass, causing the warm air to rise rapidly. This leads to the development of clouds and precipitation, distinguishing it from other front types.

Tags

NGSS.MS-ESS2-5

What is an occluded front?

• A front where two air masses stall

• A front where a cold air mass overtakes a warm air mass

• A front where a warm air mass overtakes a cold air mass

• A front where a cold front catches up with a warm front

Answer explanation

An occluded front occurs when a cold front catches up with a warm front, lifting the warm air mass off the ground. This is distinct from other fronts where air masses simply overtake or stall.

Tags

NGSS.MS-ESS2-5

What is a tornado?

• A winter storm with strong winds and snow

• A large storm with strong winds and rain

• A rapidly whirling, funnel-shaped cloud that reaches the Earth's surface

• A storm that forms over warm ocean water

Answer explanation

A tornado is specifically defined as a rapidly whirling, funnel-shaped cloud that reaches the Earth's surface, distinguishing it from other storm types like winter storms or hurricanes.

What conditions are necessary for a hurricane to form?

• High-pressure system

• Warm, humid air over the ocean

• Cold, dry air

• Cold front

Answer explanation

Hurricanes require warm, humid air over the ocean to form. This warm air rises, creating low pressure and allowing the storm to develop. Other options like high-pressure systems and cold air do not support hurricane formation.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What characterizes a blizzard?

• Heavy rain and lightning

• Strong winds and blowing snow

• Calm and clear skies

• High temperatures and humidity

Answer explanation

A blizzard is characterized by strong winds and blowing snow, which create low visibility and dangerous conditions. This distinguishes it from other weather phenomena like heavy rain or calm skies.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What happens when the boundary between two air masses stalls?

• An occluded front forms

• A cold front forms

• A warm front forms

• A stationary front forms

Answer explanation

When the boundary between two air masses stalls, it results in a stationary front. This means neither air mass is advancing, leading to prolonged weather conditions associated with that front.

Tags

NGSS.MS-ESS2-5

What type of weather may occur with high pressure?

• clear skies and light winds

• temperature rising

• temperature dropping

• rainy or stormy weather and strong winds

Answer explanation

High pressure systems are associated with descending air, which leads to clear skies and light winds. This is why the correct answer is 'clear skies and light winds', as opposed to rainy or stormy weather.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6