Compare the specific heat of the cloth car seat to the metal car roof.

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Presentation transcript:

Compare the specific heat of the cloth car seat to the metal car roof. Why did the manufacturer choose the cloth for the car seat?

Soil Water What is the source of heat in the above diagram? The specific heat of water is 4.184 J/goC (it needs to gain 4.184 J of heat to raise 1 gram 1 degree in temp) The specific heat of the soil is 0.803 J/goC ( it needs to gain 0.803 J of heat to raise 1 gram 1 degree in temp) Which substance will heat up the fastest? Why? Which substance will heat up the slowest? Why? Which substance will have the greatest change in temperature during the day? Why?

What happens to the air density above the land during the day? Compare the air density above the land to that above the water during the day. Which way will be air move?

Soil Water It is night in the above diagram. What is happening to the heat? The specific heat of water is 4.184 J/goC (it needs to gain 4.184 J of heat to raise 1 gram 1 degree in temp) The specific heat of the soil is 0.803 J/goC ( it needs to gain 0.803 J of heat to raise 1 gram 1 degree in temp) Which substance will lose heat the fastest? Why? Which substance will have the greatest change in temperature? Why? Which substance will lose heat the slowest? Why?

What happens to the air density above the land during the night? Compare the air density above the land to that above the water during the night. Which way will be air move?

Compare the location of Galveston, TX to Dallas, TX Do you think Galveston or Dallas will have the greatest fluctuation (change) in temperature throughout the year? http://www.classzone.com/books/earth_science/terc/content/visualizations/es1903/es1903page01.cfm?chapter_no=visualization

Average Monthly High and Low for Galveston, TX

Average Monthly High and Low for Dallas, TX

Average monthly highs for Galveston, TX and Dallas, TX

Average monthly lows for Galveston, TX and Dallas, TX

Record highs and lows for Galveston, TX and Dallas, TX

Which has the higher specific heat? Water or sand? Water (4.18 J/gK), Sand (0.664 J/gK) Styrofoam cup or Tin cup? Styrofoam (1.3 J/gK), Tin (0.227 J/gK) Grass or concrete? Grass (3.72 J/gK), Concrete (1.55 J/gK)