In this part of the experiment we derived a formula to convert Fahrenheit to Celsius. and then we converted to room temperature in Celsius to kelvin. each group assumed a different starting room temperature and with those temperatures we calculated the average temperature. then we measured the uncertainty by calculating the standard deviation.
next, we saw how taking two substances (whether they were the same or not) that had different initial temperatures could combine for a new final temperature. along with mass and specific heat capacity of the substance and the assumption that no heat was lost during the transfer of energy, we could easily calculate the final temperature that both substances would arrive at after mixing.
for this demonstration, we illustrated how the particles in two substances at different temperatures moved around. and when combined we can see that energy is conserved and the new velocity of the particles at a new temperature could be calculated through a momentum equation.
Here, we illustrated how the fast moving particles could heat up and increase the speed of slow moving particles with out touching each other. we were able to come up with the idea that the two sets of particles would need a buffer between them so they could essentially. bounce off one another and slow one set down as it speeds up the other set.
in this experiment we tried to determine what would happen if a balloon filled with water was exposed to a small- large flame. we guessed the balloon would expand. but because the water in the balloon had such a high heat capacity. nothing happened. the flame wasn't hot enough to make the water boil and produce a gas which would then make the balloon expand. but when the balloon was subjected to a high enough heat, it burst.
we then calculated the heat moving through a system made up of two different substances, copper and aluminum, each starting at a different temp and both connected at a cross section. we then determined that heat moving through the entire system would be the same as the heat flow of each individual block.
Finally we measured the energy needed to heat up a rod for 20 seconds. I calculated the Q to be 5070 J/kgC. the uncertainty can in when measuring out the 200g of water. So I believe there was at least a 10% error.
