How to solve problems in physics

Physics is a very entertaining and by no means simple matter. Studying the basic principles of this natural science, I learn about how everything is arranged around. In order to master the laws of physics, except for the very study of them and a large heap of formulas, one must be able to solve problems - to apply knowledge in practice and to show the ability to use them. But, most of the students do not achieve this goal. What is the catch? The main mistake of most students is in the wrong approaches to the solution. After all, it often happens that you seem to know what is involved in the condition, the basic laws and formulas, but the solution does not add up.

There are special algorithms, techniques and techniques that need to be used to correctly solve problems. The solution of problems in physics of any complexity begins with the correct formulation of the condition.

First, you need to carefully study the task itself, if there is a need, then you can re-read the condition more than once. It is necessary to establish the main theme and the physical processes of the problem. A correctly written condition is half the job, so do not neglect it. All physical quantities are written with letter designations, and their value by number. You need to be careful, because often data in conditions are given not by a number, but by a word. For example, the boiling point of water, and we know that it is equal to 1000C. Do not forget about the units of measurement, be sure to put them in your records. As a rule, most of the tasks are solved in the SI system, so you need to translate the data you need into this system. Also, for the solution, reference data may be needed, which you initially did not suspect (density, boiling point, etc.).

After recording all the data and correctly formatting the conditions, you need to determine what you need to find in the task and correctly identify this value. Some tasks can not be solved without a drawing or drawing. If, when reading the condition, you can depict the processes graphically, then do not be lazy and do it. This move can become your "lifebuoy", and, at first glance, not understandable things with visual perception will seem very very simple.

To start the decision itself, you must write down the desired formula. You can solve problems by actions, or in general (output one general formula and write a solution). How convenient. If after recording the conditions you do not know where to start, then try to solve the problem from the end.

After the decision, please check the answer. First, look at the logic of the final result - is your mosquito flying at the speed of light and does the planet weigh less than a gram?