Physics Measurements
Measurements Lab Report
Measurements
Cassandra M. Murphy
Grand Canyon University: Physics 1 Lab
September 5, 2013
Testable Question: Circular objects; what happens to the circumference as the diameter changes? Hypothesis: As the diameter increases, the circumference will increase in a proportional linear way. This is because as the diameter increase, the object will as well. Variables: Independent- The diameter of the circular objects. Dependent- The circumference of the circular objects. Design Table: index | D(cm) | C(cm) | 1-11 | D1-11 | C1-11 |
Materials: -Vernier Caliper -Variety of circular objects -String -Ruler Procedure: 1). Obtain 10 different circular objects, your ruler, string, and Vernier Caliper. 2). Make a table to record all of your data. Start measuring the diameter and circumferences of all your circular objects. 3). Put all of your supplies away and start calculating your percent error.
Data Table: index | D(cm) | C(cm) | 1 | 1.24cm | 4.1cm | 2 | 1.93cm | 8.1cm | 3 | 3.29cm | 10.8cm | 4 | 4.74cm | 17.3cm | 5 | 6.76cm | 21.4cm | 6 | 17.5cm | 55.7cm | 7 | 1.27cm | 3.7cm | 8 | 3.2cm | 10.6cm | 9 | 3.2cm | 10.6cm | 10 | 1.11cm | 3.6cm | 11 | 1.19cm | 5.8cm | Conclusion: In conclusion, my hypothesis was correct. As the diameter of the circular object got bigger, the circumference of the object got bigger as well. I do trust my results and think that we conducted this experiment correctly. Our theoretical value was 3.13 cm which is extremely close to the actual value (3.14cm) as well. Evaluation: During this experiment, our theoretical value was 3.13, and the actual was 3.14. We were extremely close with our calculations. Our percent error was only .3% which is extremely good considering all the human error that could go wrong within this experiment. Further
Measurements
Cassandra M. Murphy
Grand Canyon University: Physics 1 Lab
September 5, 2013
Testable Question: Circular objects; what happens to the circumference as the diameter changes? Hypothesis: As the diameter increases, the circumference will increase in a proportional linear way. This is because as the diameter increase, the object will as well. Variables: Independent- The diameter of the circular objects. Dependent- The circumference of the circular objects. Design Table: index | D(cm) | C(cm) | 1-11 | D1-11 | C1-11 |
Materials: -Vernier Caliper -Variety of circular objects -String -Ruler Procedure: 1). Obtain 10 different circular objects, your ruler, string, and Vernier Caliper. 2). Make a table to record all of your data. Start measuring the diameter and circumferences of all your circular objects. 3). Put all of your supplies away and start calculating your percent error.
Data Table: index | D(cm) | C(cm) | 1 | 1.24cm | 4.1cm | 2 | 1.93cm | 8.1cm | 3 | 3.29cm | 10.8cm | 4 | 4.74cm | 17.3cm | 5 | 6.76cm | 21.4cm | 6 | 17.5cm | 55.7cm | 7 | 1.27cm | 3.7cm | 8 | 3.2cm | 10.6cm | 9 | 3.2cm | 10.6cm | 10 | 1.11cm | 3.6cm | 11 | 1.19cm | 5.8cm | Conclusion: In conclusion, my hypothesis was correct. As the diameter of the circular object got bigger, the circumference of the object got bigger as well. I do trust my results and think that we conducted this experiment correctly. Our theoretical value was 3.13 cm which is extremely close to the actual value (3.14cm) as well. Evaluation: During this experiment, our theoretical value was 3.13, and the actual was 3.14. We were extremely close with our calculations. Our percent error was only .3% which is extremely good considering all the human error that could go wrong within this experiment. Further