High result Essay Example for Free

High result endeavorFirst of all, I prep be my working place and start my decisiveness. All my measurements are recorded to the circumvent above.The smallest graduation of the thermometer is 1 C. According to this, I take the absolute uncertainty of my temperature measurements as. I do non add additional uncertainty as I did not encounter any further difficulties in weight measurement.To determine mussinesses I used a digital scale with provided uncertainty in the instruction of the digital scale of 0.2g. Therefore, I take it as the absolute uncertainty of the mass measurements. I take the temperature of ice as C because the ice was melting when I started to use it in my experiment. I take this temperature supposititiously and do not include uncertainty to this measurement as it is in theoretical level.After having determined the raw data, I fill it into the table.Further I provide constants that will be used during my decisiveness. These are taken from Giancoli Physics 5 th edition, page 421cwater = 4186 J*(kg*C)-1caliuminium = 900 J*(kg*C)-1Data impactNow I will provide the mass of the water.To do this I will subtract the mass of the calorimeter from the mass of calorimeter and water togethermwater = (163.3 0.2) (35.0 0.2) = (128.3 0.4) gNow I can compare my result with literatures. In Giancoli Physics 5th edition page 425 it is provided that the latent come alive of fusion of ice to 3.33 x cv J*kg-1. Therefore, the portion discrepancy is equal to 17%. Also, the theoretical percentage uncertainty is equal to 11%. I will discuss these finding in conclusion and evaluation part.Conclusion and evaluationThe percentage discrepancy of 17% shows that the determination was make quite precisely. Moreover, the percentage uncertainty of 11% suggests that the determination was done quite accurately as well. However, these are only theoretical assumptions as much energy and heat was transferred to send out during the water cooling process. Further, I have to state to a greater extent weaknesses and limitations of my determination.Some errors were encountered despite the event that I tried to be as accurate as possible. First of all, the main weakness of the determination was that all the determination was done theoretically and I could not measure how much heat was transferred to air during the water cooling process. I was not able to measure the heat spill. Moreover, I took the ice temperature theoretically as I also could not measure it. These were clearly the weakest parts of all determination. Of course, the results are bully enough, as the percentage discrepancy shows, notwithstanding still it was only a theoretical determination base on the assumption that Qlost = Qgained. However, as for the percentage uncertainty I should blame only the instruments as I had to use quite many of them, but the uncertainty they provided was relatively small. My percentage uncertainty does not include the uncertainty of theoretical assumpti ons.Furthermore, some systematic errors have occurred as I had to do a rotary of calculations and roundings during the data processing part. Also, the instruments may have been badly calibrated and this could have affected my determination. However, systematic errors are not important because even if they even were encountered, they were very small. Another thing is with random errors and heat loss as they were really significant because the percentage uncertainty shows relevantly high result.I could provide some(prenominal) suggestions to improve the determination but obviously I am not able to make this determination not theoretically in schools conditions. First of all, I would rather use more ice, bigger calorimeter and more water. Then, as I would still use the same equipment with same absolute uncertainties, the percentage uncertainty would be reduced significantly. The uncertainty would be less important and more accurate results would come. However, my suggestions would on ly lesser the uncertainties, but they would not totally cancel them and it would still be only a theoretical determination.