Heat Absorption And Re-Radiation Of Water And Sand

Heat Absorption and Re-radiation of Water and Sand

Introduction:
Hypothesis:
If a cup of sand and a cup of water suffer the same bar of heat, then the cup of sand will absorb and re-radiate heat at a faster dictate than the water cup because sand has a lower proper(postnominal) heat than water.
Materials:
Water…………………1 cup
Sand…………………..1 cup
Identical Containers…..2
Thermometers………...2
stop watch……………. 1
Heat lamp……………..1

Procedure:
1)Fill 1 container with water.
2)Fill the another(prenominal) container with sand.
* make sure that there are equal amount of water/sand in the containers.
3)Insert 1 thermometer in apiece container.
* make sure that both thermometers are at the same starting temperature.
4)Align the containers and the heat lamp in a position where the containers are not touching and the distance from each container to the lamp is the same.
5)Turn on the lamp and start the stopwatch.
6)Record the temperatures for each stub for 10 minute at 1 min. intervals.




7) When 10 proceedings is over turn off the lamp and move it away from the area.
8) take over step 6.
9)Draw a table and record your data
10)graphical record the data.
Data
Temperature of sand and water for 20 minutes (10 minutes with lamp on and 10 minutes with lamp off)
Time (minutes)Temperature of water (c°)Temperature of sand (c°)
02121
12223
22225
32328
42431
52434
62535
72637
82638
92638
102638
112638
122636
132634
142632
152530
162528
172428
182427
192426
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