1 / 10

Warmup

Warmup. Practice temperature conversions. How to do these needs to be memorized. Warmup. Practice temperature conversions. How to do these needs to be memorized. Temperature Conversion, Specific Heat Practice. JANUARY 27, 2012. Specific Heat, Style 1 .

rodd
Download Presentation

Warmup

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Warmup Practice temperature conversions. How to do these needs to be memorized.

  2. Warmup Practice temperature conversions. How to do these needs to be memorized.

  3. Temperature Conversion, Specific Heat Practice JANUARY 27, 2012

  4. Specific Heat, Style 1 500g of water starts at 30*C. Then 8360J of energy is added. What is the new temperature?

  5. Specific Heat, Style 2 What is the total energy of a 1000g lump of aluminum with a height of 100m, speed of 4m/s, and temperature of 127*C?

  6. Specific Heat, Style 3 1000g of water at 20*C (C=4.18 J/g *C) and 1000g of aluminum at 100*C (C=.64 J/g *C) are allowed to reach thermal equilibrium together. What will the final temperature be?

  7. Specific Heat, Style 1 A certain section of asphalt (m=50kg, C=.50 J/g *K) starts at 20*C and then receives 200,000J of energy over the course of a day. Disregarding, any conduction or re-radiation of heat, what is its final temperature? Assuming 8 hours of daylight, what is the average power of the sunlight on the asphalt section?

  8. Specific Heat, Style 2 A flying pig contains thermal, potential, kinetic, and chemical energy. It has a temperature of 30*C (C=3.9 J/g *K), mass of 50kg height of 1,000m, velocity of 20 m/s, and could be cooked and consumed as 5,000 Calories of bacon (mmmm). How many Joules of total energy does the flying pig contain, and in which type of energy is most of it stored?

  9. Specific Heat, Style 3 250g of Coke at 25*C and 50g of those plastic freezer cube things (C=5.0 J/g *K) at -10*C are put in a glass. What is the thermal equilibrium they achieved?

  10. Gravity Take-Home Answers B D C B A A C D C D 11) D 12) C 13) A 14) A 15) A 16) C 17) C 18) F = G m1 m2 / r2 F = 6.67 *10-11 * 61.5 * 70 / 1.252 F = 1.8*10-7 N 19) F = G m1 m2 / r2 , F = m*g g = G m1/ r2 6.67* 10-11 *1 / 12= 6.67* 10-11 *2 / r2 r = √2 20) 6.7*10-4 = 6.67*10-11 * m1 m2/32, m1= m2 9*107 = m2 m = 9487 kg

More Related