# Questions 1 compare these values with your

This preview shows page 3. Sign up to view the full content.

was still residual heat left in the system for each trial. Questions : 1) Compare these values with your experimental values. What is the percent discrepancy in each case? Is your experimental error consistently high or low? Speculate on possible sources of error. The percent discrepancies are displayed in our Analysis and Discussion sections. They range from 33.5% to 60%, and in every case the experimental value was consistently high. Because of this, it is likely that the biggest source of error is that the system was allowed to overheat, causing an inaccurate measurement. 2) From your result, derive the coefficients of volume expansion for copper, aluminum, and steel. Volume is proportional to the dimensions of a measured object cubed. As such we can use the relation of the length cubed and change in length cubed to come up with a coefficient of volumetric expansion. 3) The Golden Gate Bridge in San Francisco, California, is 4200 ft in length. What is the bridge’s total expansion if the temperature changes from 0 Celsius to 40 Celsius. 4) When a mercury thermometer is placed in hot water, the level of the mercury initially drops before it begins to rise. Why? The mercury level drops because the container it is in, for example the glass thermometer tube, expands before the mercury does. -- Sources -- [1]. Physics Department at UNR, Lab Manual 4: Thermal Expansion. 10/5/11, 9/29/11. < ;
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern