Solving Physics Problem Using Problem Solving Strategy

darmawanbuchari (65)in #steemiteducation • 8 years ago (edited)

Dear steemians. How are you today? I hope yoa are good. Today I want to share about Solving Physics Problem Using Problem Solving Strategy.

Source

Physics is one of the lessons avoided by the majority of students. Many students think that Physics is difficult. They assume that Physics is difficult because of many mathematical formulas. Assuming the student is added again the way of learning by the teacher is not fun, making the more feared physics students. This is evident from the very few students of grade XII Senior High School who choose Physics as the subjects of choice when the Computer-Based National Test (CBNT).

Basically the formulations in mathematical form that often appear in the matter of Physics is no other aim to obtain a simpler general formula. So mathematics in Physics are a tool. Because the name of the tool, then surely the mathematical function in Physics is to ease in solving the Physics problem. The problem arises when the students' math skills are low so they can not reference the Physics problem in mathematical form. Therefore, an appropriate strategy is needed to solve the problem. Through this paper the authors offer problem solving strategies in solving Physics problems.

The problem solving strategy that the authors offer here uses four steps. Therefore, the author will try to show how to solve the problem Physics with the four steps. Physics problems that the authors show here is a matter of Physics in the form of stories. The question is the authors select one of the problems in which there is tested National Examination. For example given the problem as follows.

Source

To solve the problem, do the problem solving steps as follows.

Understand the problem

The first step is to understand the problem. To make it easier to understand the problem, the Physics problem is explained or rewritten with the word itself. For the above problem, for example, we write as follows.

Based on the drawing on the problem it can be understood that between charge A and charge B will occur FAB coulomb force, because the two similar loads (+ QA and + QB) the FAB force refused. Between charge B and charge C will occur to Coulomb style FCB repelling each other also because of the two similar charges (+ QB and + QC). The force acting on charge B due to the effect of charge A and charge C is the resultant of the FAB and FCB forces. Thus the FB coulomb force is the resultant vector which can be determined by using the vector rule.

The problem in Indonesian.

Berdasarkan gambar pada soal tersebut dapat dipahami bahwa antara muatan A dan muatan B akan terjadi gaya coulomb FAB, karena kedua muatannya sejenis (+QA dan +QB) maka gaya FAB gaya tolak menolak. Antara muatan B dan muatan C akan terjadi gaya coulomb FCB yang saling tolak menolak juga karena kedua muatan sejenis (+QB dan +QC). Gaya yang bekerja pada muatan B akibat pengaruh muatan A dan muatan C merupakan resultan dari gaya FAB dan FCB. Jadi gaya coulomb FB merupakan vektor resultan yang dapat di tentukan dengan menggunakan aturan vektor.

Translation in the form of pictures

Almost all Physics problems, especially Classical Physics, can be translated in the form of images. Usefulness of translation in the form of images makes it easier for us to understand the problem. For example for the above problem translation of the image is as follows.

Source

Draft Calculation

One of the advantages of this strategy is the design of calculations before the execution. The design of this calculation can make students more mature in solving the problem. For example for the above problem, the design calculation is as follows.

Calculation

The final step of this strategy is to execute the design that has been made. This step is easier because it simply substitutes the numbers into the calculation design. For the above problem then, the calculation is as follows.

This strategy is appropriate to solve the CBNT problem. In addition, this strategy can also be done on more complicated Physics issues such as Olympic-level issues. Students will more easily understand and design a resolution strategy of the issues to be solved. Good luck.