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Bell Ringer

Bell Ringer. Name: 2/18/2009 What day do you want popcorn? Response. Homework Chapter 21. #2 100; 180 #5 The temperature of the thermometer (and the liquid within it) will eventually reach thermal equilibrium with the surroundings

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Bell Ringer

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  1. Bell Ringer Name: 2/18/2009 What day do you want popcorn? Response

  2. Homework Chapter 21 #2 100; 180 #5 The temperature of the thermometer (and the liquid within it) will eventually reach thermal equilibrium with the surroundings #10 High ~1.0 (think of the metals we tested which are ~0.10) #11 The specific heat capacity of water is much higher than most other common substances. #16 Because of the microscopic slush in the mixture. #20 #22

  3. Homework Chapter 21 #25 Yes. The volume of water in the lake vs. the volume of water in the pail means there will be a much smaller for the water and a larger for the rock. #26 More, the steel in the tape measure will be longer on the hot day due to thermal expansion. #29 Thermal expansion occurs when the ring is heated. The ring contracts as it exchanges energy with the cold brass cylinder and the air. #31 A 10-kg hot water bottle. The iron block (c=.11) would lose heat ~10x faster than the water (c=1.0) in the bottle. #33 Iceland is surrounded by liquid water. Greenland and Siberia are surrounded by water in the form of ice. #35 Wider. This one is harder to imagine. Everyone understands that the metal expands as it is heated. #37 Contract; expand; expand

  4. Homework Chapter 21 #44 final temps will be equal; so place one on each side of the equal Extra Credit: Mr.Z’s car

  5. Chapter 22 HomeworkDue Tuesday 2/24/09 Review Questions: 2, 3, 4, 7, 8, 11, 12, 13, 16, 18, 19, 20 Think and Explain: 21, 23, 25 Extra credit: 26

  6. Lab • Lab to be performed in groups of 3

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