Initial Temperature
Group No. Date:
Leader : Section:
Members:
Experiment no: 1A
Data and Results:
Initial Temperature: To = 25 degrees Celsius
Final Temperature: Tf = 100 degrees Celsius Rod | Initial length | Change in Length | Coefficient of Linear Expansion(Exp) | Coefficient of Linear Expansion(Theo) | % Error | Steel | 40 | .035 | 1.17 x 10 / C | 1.1 x 10^-5/ C | 6.36% | Copper | 40 | .055 | 1.8 x 10 ^-5 /C | 1.7 x 10^-5 /C | 5.88% |
Computation :
Conclusion:
1. A bemetalli c strip is made by joining two materials with different coefficients of thermal expansion. If given figure belo aA >aB, will the strip curl upsward or downward.
2. An aluminum rod at 18 C has a length od 2.5 meters. At what possible temperatures will its length change by 1 cm?
3. One hot summerday a square lot was measured using a steel tape. The same lot was measured by the same steel tape on one wintry day. Will the measurement vary?
4. Two rods have the ff. Properties at 18 C
At what temp. will 2 rod equal in length
5. Given 2 brass rods, one 1 m and the other 1 cm at 4 C. At what temp. will the rods double their lengths. Will it be a common temp.?
Group No. Date:
Leader : Section:
Members:
Experiment no: 1B
Data and Results: | 1st Rod | 2nd Rod | Material | Copper | Aluminum | Initial length | | 400 | Change in Temperature | | | Change in length | | .04 | (a) Exp | | 1.5 x 10 ^ -5 | (a) Theo | 1.7 x 10 ^-5 | 2.4 x 10 ^-5 | % error | | |
Computation :
Conclusion:
1. Compare the accepted values of the linear expansion coefficient for the metals used in the experiment, with the experimental values. What is the percentage diff. in eah case?
2. Based on your answers in 1, what do you think are the possible sources od error in the experiment.
3. Why is it necessary to wrap the rod and thermistor with tubular dorm?
4. What are isotorpic metals?
Group No.
Leader : Section:
Members:
Experiment no: 1A
Data and Results:
Initial Temperature: To = 25 degrees Celsius
Final Temperature: Tf = 100 degrees Celsius Rod | Initial length | Change in Length | Coefficient of Linear Expansion(Exp) | Coefficient of Linear Expansion(Theo) | % Error | Steel | 40 | .035 | 1.17 x 10 / C | 1.1 x 10^-5/ C | 6.36% | Copper | 40 | .055 | 1.8 x 10 ^-5 /C | 1.7 x 10^-5 /C | 5.88% |
Computation :
Conclusion:
1. A bemetalli c strip is made by joining two materials with different coefficients of thermal expansion. If given figure belo aA >aB, will the strip curl upsward or downward.
2. An aluminum rod at 18 C has a length od 2.5 meters. At what possible temperatures will its length change by 1 cm?
3. One hot summerday a square lot was measured using a steel tape. The same lot was measured by the same steel tape on one wintry day. Will the measurement vary?
4. Two rods have the ff. Properties at 18 C
At what temp. will 2 rod equal in length
5. Given 2 brass rods, one 1 m and the other 1 cm at 4 C. At what temp. will the rods double their lengths. Will it be a common temp.?
Group No. Date:
Leader : Section:
Members:
Experiment no: 1B
Data and Results: | 1st Rod | 2nd Rod | Material | Copper | Aluminum | Initial length | | 400 | Change in Temperature | | | Change in length | | .04 | (a) Exp | | 1.5 x 10 ^ -5 | (a) Theo | 1.7 x 10 ^-5 | 2.4 x 10 ^-5 | % error | | |
Computation :
Conclusion:
1. Compare the accepted values of the linear expansion coefficient for the metals used in the experiment, with the experimental values. What is the percentage diff. in eah case?
2. Based on your answers in 1, what do you think are the possible sources od error in the experiment.
3. Why is it necessary to wrap the rod and thermistor with tubular dorm?
4. What are isotorpic metals?
Group No.