Chapter+12

Temperature and Heat

media type="custom" key="8330522" First set of hw problem solution. http://www.fun-science-project-ideas.com/Dry-Ice-Experiments-2.html DRY ICE PROJECTS Due Date: February 17th Thursday 8X4 paper is ok!
 * Remember Lab Report Due Monday February 14th (lab report rubric can be found on "Toothpick Bridge" wikipage.

http://uccpbank.k12hsn.org/courses/APPhysicsBI/course%20files/multimedia/lesson25/lessonp.html

ASSIGNMENT FOR FEBRUARY 1ST complete on a separate sheet of paper and turn in by the end of class.

TEMPERATURE CONVERSIONS CHALLENGE: CONSERVATION OF ENERGY THE PHYSICS OF THROWING A FOOTBALL media type="youtube" key="s0WMd0Y6hIw" height="390" width="640" THE PHYSICS OF SKATEBOARDING (doesn't have much to do with temp. or heat) media type="youtube" key="C6MEA4ds7Fw" height="390" width="640"
 * 1) Because of Venus’ proximity to the sun and its thick, high-pressure atmosphere, its temperature can rise to 860.0 degrees F. Express this temperature in degrees Celsius.
 * 2) The temperature of the m oon’s surface can reach 117 degrees C when exposed to the sun and can cool to -163 degrees C when facing away from the sun. Express this temperature change in degrees Fahrenheit.
 * 3) On January 22, 1943, the air temperature at Spearfish, South Dakota, rose 49.0 degrees F in 2 min to reach a high temperature of 7.00 degrees C. What were the initial and final temperatures in degrees Fahrenheit? What was the temperature in degrees Celsius before the temperature increase?
 * 4) In 1916, Browning, Montana, experienced a temperature decrease of 56°C during a 24 h period. The final temperature was −49°C. Express in kelvins the temperatures at the beginning and the end of the 24 h period.
 * 5) In 1980, Willie Jones of Atlanta, Georgia, was hospitalized with heat- stroke, having a body temperature of 116°F. Fortunately, he survived. Express Willie’s body temperature in kelvins.
 * 6) Usually, people die if their body temperature drops below 35°C. There was one case, however, of a two-year-old girl who had been accidentally locked outside in the winter. She survived, even though her body temper- ature dropped as low as 14°C. Express this temperature in kelvins and in degrees Fahrenheit.
 * 7) In experiments conducted by the United States Air Force, subjects en- dured air temperatures of 400°F. Express this temperature in degrees Celsius and in kelvins.
 * 1) Mount Everest is the world’s highest mountain. Its height is 8848 m. Suppose a steel alpine hook were to slowly slide off the summit of Everest and fall all the way to the base of the mountain. If 20.0% of the hook’s mechanical energy is absorbed by the hook as internal energy, calculate the final temperature of the hook. Assume that the hook’s initial temperature is -18.0 degrees C and that the hook’s temperature increases by 1.00 degree C for every 448J/kg that is added.