Lab 5: Heat Transfer
The sun heats up the sidewalk through ...
radiation
True or False: Air is matter
TRUE
Air is made of gasses and those gasses have a mass.
How does air move?
(Hint! Its about pressure ...)
Always from high pressure to low pressure.
This type of front looks like blue triangles on a weather map.
cold front
a tool used to measure air pressure.
barometer
Pasta rises up and down and up and down in boiling water as it cooks.
convection
True or False: Air can't have temperature.
FALSE.
We found this out in lab...Air above hot water is warmer than air above ice.
In our lab...which condition represented the HOT and DRY airmass?
The lit candle
How do you know the direction a front is moving?
The symbols (either blue triangles or red semi circles) points towards the way they are moving.
the amount of matter in an object.
mass
You burn your hand by touching a hot pan ...
conduction
Explain 2 features of how HOT air moves.
Hot air moves fast and tends to rise.
It is less dense, thus it rises above cold air.
Which condition in lab represented our maritime polar air mass?
ice
maritime tropical
how high something is above sea level
altitude
A hot block of iron is placed in a cold beaker of water.
Which substance is gaining heat?
Which substance is losing heat?
Gaining: Water
Losing: Iron block
Explain 2 features of how COLD air moves.
Cold air moves slow and sinks.
Cold air is more dense than warm air, so it sinks under the warm air.
Describe the movement (speed and where it went) of air when smoke was placed on the ice side with a candle on the other side.
smoke moved VERY quickly from the ice side through the convection tube to the candle side (wind as made) and then it rose to the top of the candle side.
What are the two types of weather you could find along a stationary front?
Rain or Snow
how much heat energy it takes to raise the temperature of something
how does heat move?
From the hotter thing to the colder thing EVERY SINGLE TIME!
What happens to air pressure when air is heated on land? WHY?
Air pressure goes down because the air molecules spread out easier.
WHY did air move from the ice side to the hot water side?
(Hint: Think about how wind is made)
Air above ice is of a high pressure (more molecules packed closed together, that's why the air sinks). Air always moves from high pressure to low pressure. Air above the hot water was lower pressure (which is why it rises on this side)
A warm front is moving NORTH from Colorado to Wyoming.
Based on your knowledge of fronts is Wyoming currently warmer or colder than Colorado, and WHY?
Wyoming is colder because the warm air has not yet reached Wyoming.
a measurement of hotness or coldness.
temperature