Author: physicsadmin
-
Time
As previously discussed, in Physics – particularly Classical Mechanics – we study the motion of an object. As, as we defined, motion is the change of position of an object. However, that raises an important question: what is time? If we were to “define” time, it would be very complicated and would not serve our…
-
Space
In Physics, we study the motion of objects. And, as discussed, motion is the change of position after a period of time. However, what is position? And what does “a period of time” mean? We will explore these ideas the same way we did in the previous discussion. Space is, simply put, an environment in…
-
What is mechanics? — where the study of motion begins
The first time I seriously thought about mechanics wasn’t in a laboratory. It was on a bus. The driver hit the brakes a little too hard, and everyone instinctively leaned forward. For a brief second, I remember wondering: Why does my body keep moving when the bus has already stopped? That small, everyday moment is…
-
On Particle
In any science field, it is essential to identify what we are trying to study. For example, in Chemistry, we study matter (its structure, the interaction between different substances, etc.). Similarly, in Physics, we need to identify what we are trying to study. In Physics, we are trying to study the motion of objects. So,…
-
Why Physicists Deliberately Use “Wrong” Models
1. A Question That Initially Confused Me In physics classes, we are repeatedly taught to simplify reality. We assume: At first, this felt unsettling. If these assumptions are clearly false in the real world,why do physicists insist on using them?And more importantly:how can a model that is “wrong” still produce correct predictions? This question stayed…