Intro to Thermodynamics. With Angry Birds Physics Feb 2014 J. Tobler
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1 Intro to Thermodynamics With Angry Birds Physics Feb 2014 J. Tobler
2 What is Thermodynamics? The study of heat and its transformation into mechanical energy Started with the invention of the steam engine in the 1800 s They wanted to create more efficient and powerful engines and thermodynamics helped them do this Studies the relationship between heat and temperature and how they relate to work and energy Involves chemistry and physics principles
3 A few words from Bill Click on the link below to a YouTube Video Bill Nye: Heat Eureka: Temperature vs Heat
4 Reading Questions: 1. What is the smallest piece of iron you can have? 2. What is the fundamental building block for all objects? 3. Why can so many atoms fit on the tip of a pin or a gran of salt? 4. Can atoms be broken? If so what do you get?
5 5. What are the phases of mater? 6. Describe how the molecules behave in each state of matter. 7. Rank the phases from greatest energy to least energy.
6 8. What is thermal equilibrium? 9. Do temperature and thermal energy have to be the same? 10.What direction does heat energy flow?
7 11.What is volume? 12.Describe how pressure and force are related. 13.As temperature of a gas increases what happens to pressure? Why?
8 14. Temperature measures the energy NOT the energy of the material. 15.What determines the amount of total energy in a material? 16.Why don t you get burned from a Sparkler on 4 th of July? 17.Water is used as a coolant because it takes times the energy to increase its temperature then a piece of steel with the same mass.
9 18. Why do we feel comfortable when it is 70 F outside but 70 F is too cold to swim in? 19. Thermal energy always flows from to 20.The speed of energy transfer depends on. 21.What is a calorie used for?
10 22. When KE decreases where does the energy go? 23. Friction causes and increase in Energy. 24.Explain how you can use sticks to start a fire.
11 25. What forms of energy are found in fire? 26. What is needed to keep a fire going? 27.What can the color of the flame tell you about the fire? 28.What shape would a flame have on the International Space Station?
12 29. What is the 4 th phase of matter? 30. In a plasma the atoms move so quickly that the electrons can the atoms. 31.What is the most common state of matter in the universe? 32.Where can you find plasma in your homes or school?
13 Plasma Demos Best Top 10 Plasma Ball Tricks on YouTube
14 33. What causes ice to melt? 34. What 2 things happen when salt is added to ice? 35.Which takes more energy melting or boiling? How much more energy? 36.Why does water float when it freezes? (Think about density and volume)
15 37. Explain how sweating can make you cooler. 38. How does humidity affect evaporative cooling from sweating? 39.How can a wet cloth cool a water bottle?
16 Evaporative Cooling Example What is Evaporative Cooling? Examples Sweating Swamp coolers Misters for hot outdoor areas
17 40. Why do things expand when heated? 41. Why is it important to have expansion joints in roads, sidewalks and buildings? 42.Explain how thermal expansion works in making your favorite movie food.
18 Expansion and Contraction Expansion and Contraction Explained Expansion and Contraction Demos
19 43. What does an insulator do? 44. How does fur act as an insulator?
20 44.Do blankets keep everything warm? Why? 45.Can a cooler be used to keep things warm? Why or why not? 46.How does a wetsuit keep a diver warm?
21 47.What temperature does water freeze? 48.Dry ice is frozen CO 2, how cold does it need to get to freeze CO 2? 49.What is a superconductor? 50.What substance do they use to keep an MRI cool? How cold is it?
22 Superconductor Fun Superconductors Explained More Superconductors
23 To Summarize Hot 2 Cold Song not by Katy Perry But Katy s song works to help remember heat flow direction too.
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