Table of Content
- What is the Physical world?
- Advancements in Physics
- Research in Physics
- Hypothesis, Axioms, and Models
- Understanding phenomena in physical world
Physics is a basic understanding of the world around us. How the world transforms itself in terms of space, matter, motion, space and time is all explained with the help of Physics. . The physical world is linked with physicists and their environment. Physicists keep on studying the environment under static conditions to acknowledge important results and impart them with fruitful results.
Physics is one of the oldest subjects being thought from the 17th century. Physics is also optimized in interpreting astronomy and its related environmental effects. Astronomy is a branch of science which deals with the study of celestial bodies and their revolutionary patterns. Understanding of physical world helps in learning in the advancements of physics and its impact on different sectors like technology or environment.
Advances in physics often interpret to the technological sector and sometimes act upon other study areas like mathematics, philosophy, and science. Some examples which explain advancements are as follows:
- Moderation in electromagnetism has led to the invention of televisions, home appliances, computers etc.
- Advancements in thermodynamics have led to modern means of energy efficient transports.
- Advancements in electronics and instrumentation engineering helped in developing new instruments which help in handling mechanics in a better way.
- When mechanics was under development Newton brings out Calculus which made research quite easier.
The idea behind advances is to figure out a way or technique which can make a study of desired science stream compact and easier.
Research in physics is studied under following sections:
- Condensed Matter Physics
- Atomic Physics
- Molecular Physics
- High-energy Physics
Condensed Matter Physics is a branch of physics which addresses physical characteristics of condensed matter. Condensed matter of physics studies how matter arises from atoms and electrons and how the interaction is carried out. The research of condensed matter physics includes exploring and experimenting with theoretical models of condensed matter.
Atomic Physics studies the nature of the atom and subatomic particles. This includes in researching about how electrons are arranged around a nucleus and what variation in properties comes when there is a change in the arrangement of atoms.
A branch of physics which helps in studying the nature of molecules. This includes analyzing the nature of bonds between molecules with special techniques like spectroscopy and scattering.
High energy physics also known as particle physics is a branch of science which explores the nature of particles and how they are linked with matter and radiation.
It’s a research branch of physics with deals with studying of celestial bodies and inter-related natural phenomena.
In Astrophysics a researcher analyzes the physical nature of celestial bodies. This includes inquiring about temperature, density and other characteristics of a physical body.
When understanding and studying the physical world one needs to prove many laws and theorems proposed by the physicists. This proving can’t be done all alone with the help of physics and mathematics. Physics and Mathematics also work on assumptions to get to their desired results. These assumptions are known as a hypothesis, models, and axioms. If physicists stop using assumptions then this would definitely abrupt researches and advancements.
Example 1: If Newton didn’t assume the law of gravitation, then the invention of airplanes, submarines and cloud technology was something next to impossible. This is because of the hypothesis of gravitation which helped in advancing the basic aspects which require gravity as the working principle.
Example 2: In studying metamorphosis in plants, researchers analyze the environment and record some observations like the temperature of atmosphere used in metamorphosis, weather, type of soil etc. These recordings help in studying another plant’s metamorphosis and thereby comparing the physical properties of both plants.
How did scientists use to record phenomena in past times? They might have studied through perceptions and followed basic perceptions. Earlier scientists believed that understanding phenomena only demands qualitative thinking, later they came to realize how quantitative thinking affects and rebuilds the foundation of science. Quantitative measurement is the reason behind the growth of science, mainly physics because it helped in expressing the laws of nature in form of mathematical equations, thereby simplifying the complex processes into simple ones.
Secondly, quantitative thinking helped in the understanding of physics laws. The laws of physics are universal- the same law applies in all wide contexts. This significantly changed the understanding of nature in stipulated forms and expanded it to other phenomena as well. Also, quantitative thinking introduced the concept of approximations, which is used in almost every physics equation.
Understanding phenomena shouldn’t go in just one attempt because a phenomenon is very complicated, as it becomes difficult to understand all the aspects of phenomena in just one go. A good plan to study a natural process is first focusing on the essential features of the phenomena and then making necessary corrections to make a refined theory of the phenomena.
Example: Go to the terrace and drop a piece of stone and feather. According to science, both will hit the ground at same time. But ironically you will find that they don’t hit the ground at same time. So what does it mean? Is physics wrong? Nope, the problem is air resistance which is not allowing the feather and stone to fall freely under gravity. Now perform the same experiment in a long evacuated tube, in this case, you will find both objects hit the ground at same time.
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