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Asia-Pacific Forum on Science Learning and Teaching, Volume 17, Issue 1, Article 1 (Jun., 2016) |
Appendix A: An example of PDEODE*E task on parallel plate capacitors
PDEODE*E TASK 3
(STUDENTS WORKSHEET)
Name : ………………………………………………………………………………….
Date : ………………………………………………………………………………….
Group : ………………………………………………………………………………….
Topic : Parallel Plat Capacitors
Part 1 : Parallel plat capacitors on different distances and area of two plats
- Given a set of experiments on parallel plat capacitors equipped with capacitance-meter.
- The first plat capacitor was permanently set whereas the second plat was changeable set in accordance with the tracks have already given and in the different area but in the same distance.
- Connecting the wires between electric voltage and parallel plat capacitors to the capacitance-meter in serial circuit.
- Predict the phenomena that should occur to the capacitance-meter when the second plat was set to the first, second and forth tracks and was set in the same distance but in different area of two plats? Indicate and explain the reason for your prediction!
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- Discuss the reasons of your prediction with your group members. Then, explain your reasons in detail!
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- Observe the phenomena that occur in the capacitance-meter when the second plat was set to the first, second and forth tracks and was set in the same distance but in different area of two plats! What should occur? Is there any difference between the two phenomena? Indicate the results of your observations!
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- Why does this happen? Discuss it with your group members! Then, explain your reasons in detail!
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- Perform further exploration of your observations by using the equipment given! Write the conclusion on Exploration Sheet below! (Exploration Sheet was attached)
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- Compare to the results of your observation, exploration and prediction! Whether they are similar or different? Explain your reasoning! What can you conclude from this phenomenon? Please write your reason below!
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Part 2 : Parallel Plat Capacitors which is filled by dielectric materials (glass, wood and vinyl chloride)
- Predict the phenomena that should occur to the capacitance-meter while was filled by dielectric materials (i.e. glass, wood and vinyl chloride) alternately? Indicate and explain the reason for your prediction!
……………………………………………………………………………………………………………………………………………………………….
- Discuss the reasons for your prediction in your group. Then, explain your reasons in detail!
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- Observe the phenomena that occurred on the capacitance-meter while was filled by dielectric materials (i.e. glass, wood and vinyl chloride) alternately? Are there any differences between the three events? Indicate the results of your observations!
……………………………………………………………………………………………………………………………………………………………….
- Why does it happen? Discuss with your group members! Then explain your reasons in detail
……………………………………………………………………………………………………………………………………………………………….
- Perform further exploration related to your observations by using the equipment given! Write the conclusion on Exploration Sheet below! (Exploration Sheet attached)
……………………………………………………………………………………………………………………………………………………………….
- Compare the results of your observation, exploration and prediction! Whether they are same or different? Explain your reasoning! What can you conclude from this phenomenon? Please write your reason below!
……………………………………………………………………………………………………………………………………………………………….
Applications in Everyday life:
- Identify the examples of the real phenomena (daily phenomenon) of the application of parallel plat capacitors!
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