Monday, March 3, 2014

Experiments and work 2.26.14



Predictions for why different materials expend differently. 


Experiment for thermal expansion.


Demonstration of thermal expansion.


Equipments that used for experiment.


Calculations for the coefficient of linear expansion.


The uncertainty.


Graph from thermal expansion experiment.

Predication graph.


Latent heat experiment.

Graph of it. 

Calculations to find the latent heat of vaporization. 


Standard deviation calculated using excel and our answer is almost the same as the STD DEV value.



Predictions for gas law.


Gas law experiment no. 1.


Gas law experiment no.2.

 
Graphs from gaw law experiments.

Conclusion: pressure is directly proportional to temperature and inversely proportional to volume.

Tuesday, February 25, 2014

Group work/experiment done in class, 2.24.14




Linear relationship between Fahrenheit and  Celsius


Using the equation 'Q = KA(T1-T2)/L to find K


Find the final temperature between Cu And Al and what would the length be for it to be 50 degree C using Rcu = Ral


Heat transfer as energy exchange lab data with graph and slope (0.8372).


Equipments used during experiment.

Conclusion: Halve the mass of the water will not affect the slope of the graph, it does not depends the mass of the water. The slope of the graph is the specific heat capacity of water although it's not one because the mass was not one. The physical meaning behind it would be that how much heat or energy is needed to heat up the water.