1. How is temperature commonly measured? -
2. How many degrees are between the melting point of ice and boiling point of water on the Celsius scale? Fahrenheit scale? -
3. Why is it incorrect to say that matter contains heat? -
4. In terms of differences in temperature between objects in thermal contact, in what direction does heat flow? -
5. What is meant by saying that a thermometer measures it own temperature? -
6. What is thermal equilibrium? -
7. What is internal energy? -
8. What is the difference between a calorie and a Calorie? -
9. What does it mean to say that a material has a high or low specific heat capacity? -
10. Do substances that heat up quickly normally have high or low specific heat capacities? -
11. How does the specific heat capacity of water compare with that of other common substances? -
12. Why is the North American west coast warmer in winter months and cooler in summer months than the east coast? -
13. Why does a bimetallic strip curve when it is heated (or cooled)? -
14. Which expands most for increases in temperature: solid, liquids, or gases? -
15. At what temperature is the density of water greatest? -
16. Ice is less dense than water because of its open crystalling structure. But why is water at 0掳C less dense than water at 4掳C? -
17. Why do lakes and ponds freeze from the top down rather than from the bottom up? -
18. Why do shallow lakes freeze quickly in winter, and deep lakes not at all? ?br>
40. If you wished to warm 100 kg of water by 15掳C for your bath, how much hear would be required? (Give your answer in calories and joules.) -
41. What would be the final temperature if you mixed a liter of 40掳C water with 2 liters of 40掳C water? -
42. What would be the final temperature if you mixed a liter of 40掳C water with 2 liters of 20掳C water? -
43. What would be the final temperature of the mixture of 50 g of 20掳C water and 50 g of 40掳C water? -
44. What would be the final temperature when 100 g of 25掳C water is mixed with 75 g of 40掳C water? -
45. What is the specific heat capacity of a 50-gram piece of 100掳C metal that will change 400 grams of 20掳C water to 22掳C? -
46. Suppose that a metal bar 1 m long expands 0.5 cm when it is heated. How much would it expand if it were 100 m long? -
47. Steel expands 1 part in 100 000 for each 1掳C increase in temperature. If the 1.5-km main span of steel suspension bridge had no expansion joints, how much longer would it be for a temperature increase of 20掳C? -
48. What will be the final temperature of 100 g of 20掳C water when 100 g of 40掳 iron nails are submerged in it? (The specific heat of iron is 0.12 cal/gC掳.) -Need help with Physics please. (Need 31 chapters can u help with one chapter?) please and thank you?
I'll answer 3
Matter gets energy (heat) and it also transfers it. It can't contain it because it would have to also exert energy to produce it.Need help with Physics please. (Need 31 chapters can u help with one chapter?) please and thank you?
ARE YOU FOOL.Need help with Physics please. (Need 31 chapters can u help with one chapter?) please and thank you?
HAHAHAHAHAHA
