Middle School Earth and Space Science : Explain what causes storms, cold fronts, and warm fronts
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Example Question #1 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
Which of the following best defines a "warm front"?
a boundary between two different air masses, where cold air is advancing into warm air
a boundary between two different air masses, where two cold fronts cancel each other out
a boundary between two different air masses, where two warm air masses collide
a boundary between two different air masses, where cold air is retreating and warm air is advancing
a boundary between two different air masses, where cold air is retreating and warm air is advancing
The answer is "a boundary between two different air masses, where cold air is retreating and warm air is advancing."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #1 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
What conditions are required in order for a thunderstorm to occur?
moisture and heavy clouds
moisture and lightning
moisture and differences in air pressure
moisture and heat
moisture and differences in air pressure
The answer is "moisture and differences in air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #2 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
What happens when a storm starts to run out of updrafts?
nothing will happen to the storm
the storm will weaken
the storm will strengthen
the storm will produce lightning
the storm will weaken
The answer is "the storm will weaken."t
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #3 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
When strong updrafts occur, what type of weather should we expect?
gentle showers
tornadoes, hail, high winds
high humidity but no rain
clear, sunny skies
tornadoes, hail, high winds
The answer is "tornadoes, hail, high winds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #4 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
Where do thunderstorms occur?
where a warm front meets a cold front
where moist warm air is on the ground and cold dry air is above
all of these
where there is a difference in air pressure and high moisture
all of these
The answer is "all of these."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #5 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
How do convection currents cause thunderstorms?
They cause warm and cold air to rise.
They cause cold air to rise and warm air to sink.
They cause warm and cold air to sink.
They cause warm air to rise and cold air to sink.
They cause warm air to rise and cold air to sink.
The answer is "They cause warm air to rise and cold air to sink."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #6 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
What would a meteorologist be paying the MOST attention to if she were trying to predict whether a thunderstorm would occur?
temperature
wind chill
air pressure
dew point
air pressure
The answer is "air pressure."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #2 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
Which of these factors are required to form both hurricanes and thunderstorms?
winds moving towards the center of the storm and warm air rising into the clouds
high temperature and high moisture content
winds moving at low speeds and a high temperature
winds moving away from the center of a storm and high moisture
winds moving towards the center of the storm and warm air rising into the clouds
The answer is "winds moving towards the center of the storm and warm air rising into the clouds."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #2 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
Which of the following best describes when thunderstorms are MOST likely to occur?
Thunderstorms do not happen more often at any time of day or during any specific season.
Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours.
Thunderstorms can happen year round but are more likely to happen in the evening and early morning hours.
Thunderstorms are most likely to happen in the fall and winter months at all hours of the day.
Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours.
The answer is "Thunderstorms can occur year-round and at all hours. But they are most likely to happen in the spring and summer months and during the afternoon and evening hours."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
Example Question #3 : Explain What Causes Storms, Cold Fronts, And Warm Fronts
What is a squall line?
A squall line is a group of cold fronts that occur back to back across a wide area over a short time.
A squall line is a warm front that brings temperatures to a "squall" causing record breaking heat waves.
A squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy rain.
A squall line is a sea breeze that brings cold air currents from the ocean to land, which birds often ride to shore.
A squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy rain.
The answer is "A squall line is a group of storms arranged in a line, often accompanied by “squalls” of high wind and heavy rain."
A front represents a boundary between two different air masses, such as warm and cold air. If cold air is advancing into warm air, a cold front is present. On the other hand, if a cold air mass is retreating and warm air is advancing, a warm front exists.
Thunderstorms are caused by moisture and differences in air pressure. Remember that warm air rises and cold air sinks. When warm, moist air is near the ground and cold, dry air is up above, convection will create unstable air currents where high pressure and low pressure systems meet. In a big thunderstorm cloud, there are now strong upward winds and downward winds happening at the same time. These are called updrafts and downdrafts. This is the most dangerous stage of the storm, when tornadoes, hail, winds and flooding can happen. Updrafts continue to fuel the storm with warm, moist air. But, once a storm runs out of updrafts, it starts to weaken.
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