Phs 113 Mid Term

2090 Words Oct 10th, 2015 9 Pages
PHS119 MIDTERM EXAM
************************************************************************
This midterm exam was completed individually by me. I did not receive nor did I give unauthorized assistance during the taking of this exam.
____________________________
Student Name
************************************************************************

1. (8pts) Is the atmospheric “greenhouse effect” bad for us and for our planet? Explain your answer. The greenhouse effect allows the sun’s radiation to get to Earth and absorbs some of the infrared radiation from Earth. Without the greenhouse effect, we would release too much infrared energy which would cause our planet to freeze. Greenhouse gases actually occur naturally and they are good for us
…show more content…
This is different than the actual air temperature as the wind chill temperature is usually lower because of the lost heat from the wind.
3. The last temperature is the wet bulb temperature. This indicates the lowest temperature that can still evaporate water. The wet bulb temperature is lower than the air temperature, but as the two get closer together it is harder for the skin to evaporate water which may make someone sweaty and harder for them to cool off.
4. I thought I remember reading that there was a 4th one which was the difference in temperature from direct sunlight and indirect sunlight (such as standing in the shade). If you put a thermometer in the direct sun, the temperature may be the result of heating the thermometer instead of the actual air temperature.
4. (4pts) Differentiate between:
a. weather and climate.
Climate is average conditions or air temperatures over a period of time. Weather is the immediate air temperature.
b. frost and frozen dew.
Frost forms when there is enough moisture in the air and the ground is cold to cause the moisture to condense and reach the dew point. The frost happens because the dew point is below freezing and the moisture goes from a gas to a solid without hitting the liquid phase. Frozen dew follows the same process except it goes from gas to liquid to solid.
5. (9pts) Explain the…

More about Phs 113 Mid Term