79-90 in book 1.
Define weather
Weather is a description of the short-term conditions of the atmosphere at a particular place and time
How does air flow
Air flows from high to low air pressure
Front that moves slowly and can bring rain clouds
Warm front
What makes things fly
Air pressure
Name 3 things that affect air pressure
Water vapor, temperature,altitude
What could reports of weather include
Reports of weather might include information about temperature, humidity, precipitation, air pressure, wind speed
Define front
Front is boundry between air masses
Front that moves quickly and can bring precipitation and storms
Cold front
How do helicopters create lift?
Develop differences in pressure by roters spinning in circles
What tool is used to measure air pressure
Barometer
Describe cold air particles versus warm air particles
Cold air particles are slower and more dense while warm air paticles are faster and less dense
What does “h” on a weather map stand for
Areas where air pressure is the highest
Front where clouds/precipitation can occur, cold mass catches up with warm mass
Occluded front
Planes fly because the air passing under the wing is moving ____ than the air pressure passing above. This creates _____ pressure under the wing than above
Slower, higher
As air pressure increases so does the _____
Density
Define humidity
Humidity is the amount of water vapor in the air
What does “L” stand for on a weather map
Areas where air pressure is the lowest
What front can cause many days of precipitation and clouds also neither mass is strong enough to replace the other
Stationary front
Dynamic pressure is the pressure of ____ air
Moving
Source regains determine ____ and ______ of an air mass
Temperature, moisture
Define air pressure
Air pressure is the force of air pushing on an object
Define isobar
A isobar is a line that follows along points of equal air pressure
True or false
does weather change at fronts?
True
how do jets fly
Differences in air pressure
A _____ front is when a cold air mass pushes a warm air mass out of the way! A ____ front is when a warm air mass pushes a cold air mass out of the way
Cold, warm