Fronts and Air Masses
What is an air mass?
A body/group/mass of air.
What are the three types of energy transfer?
Conduction, convection, and radiation.
What tool do you use to measure length?
Ruler
Will warm air sink or rise up?
Rise up
You compress air inside a syringe. Did the density of the air inside increase or decrease?
Increased
What are the characteristics of a continental polar air mass?
dry and cold
Julie can feel the heat from the fire place from across the room. What type of energy transfer is this?
Radiation
What tool do you use to measure mass?
Triple Beam Balance
When you heat a fluid, what happens to the spacing between the particles?
They spread out.
We did a lab to see if Earth's materials heated up at different rates. Which substance heated up the slowest an cooled down the slowest?
Water
Where does a maritime polar air mass form?
Over the ocean near the poles.
What do you call the angle at which sunlight strikes a surface?
Solar Angle
What unit of measurement do we use to measure temperature in the Metric System?
Degrees Celsius
What is the formula for density?
D = m/v
What kind of weather will you have if you are under a big, blue "H" on the weather map?
Clear, dry, sunny skies! (Happy weather)
What would you name an air mass that forms over land near the equator?
Continental Tropical
You are boiling water in a metal pot on the stove. You come by later and grab the metal handle and it is hot! What type of energy transfer caused the metal handle to become warm? Choose the BEST answer.
Conduction
What tool do we use to measure air pressure?
Barometer
Water has a density of 1 g/cm^3. You place a block with a density of 1.4 g/cm^3 in the water. Will it sink or float?
Sink, because it has a higher density than water.
Why do winds blow in curved lines instead of in straight lines from the north to the south?
The Coriolis Effect (the spin of the Earth)
Describe how an occluded front forms.
A cold air mass pushes a warm air mass into another cold air mass, and it gets sandwiched up into the air!
Describe how a convection cell works in the atmosphere. I'll get you started: the sun warms up the ground by radiation, the ground heats up the air by conduction...
The warm air rises because it is less dense by convection, then it cools high in the atmosphere as the temperature drops, the cool air sinks because it is more dense, it touches the ground and heats up and the cycle starts over!
What unit of measurement do we use to measure air pressure in the Metric System?
Millibars
You have a box made of an unknown substance and need to find its density. Describe how you would find it.
Find the volume of the box by multiplying the length, width, and height. Then find the mass. Then divide the mass by the volume.
Which type of local wind only happens at night?
Land Breeze