Ευθύγραμμη ομαλή κίνηση
© Κωνσταντίνος X. Παύλου
19
24/9/2014
Στρατηγική λύσης προβλημάτων
GOAL PROBLEM-SOLVING STEPS
24-Σεπ-14
(c) Κωνσταντίνος Χ. Παύλου, Φυσικός – Ρ/Η (MSc)
37
Besides what you might expect to learn about physics concepts, a very
valuable skill you should hope to take away from your physics course is
the ability to solve complicated problems. The way physicists approach
complex situations and break them down into manageable pieces is
extremely useful. We have developed a memory aid to help you easily
recall the steps required for successful problem solving. When working
on problems, the secret is to keep your GOAL in mind!
Στρατηγική λύσης προβλημάτων
1. Gather information
24-Σεπ-14
(c) Κωνσταντίνος Χ. Παύλου, Φυσικός – Ρ/Η (MSc)
38
The first thing to do when approaching a problem is to understand the
situation. Carefully read the problem statement, looking for key phrases
like “at rest” or “freely falls.” What information is given? Exactly what is
the question asking? Don’t forget to gather information from your own
experiences and common sense. What should a reasonable answer
look like? You wouldn’t expect to calculate the speed of an automobile to
be 5
∙
10
6
m/s. Do you know what units to expect? Are there any limiting
cases you can consider? What happens when an angle approaches 0°
or 90° or when a mass becomes huge or goes to zero? Also make sure
you carefully study any drawings that accompany the problem.