Most people hear the word 'physics'.
You are surrounded by physics all the time, and whether you realize it or not,
you use physics every day. Physics, matter and energy are studied, the word
'physics' comes from the Greek 'knowledge of nature,' and in general, the
purpose of the field is to analyze and understand the natural phenomena of the
universe.
It is really difficult to define what is
physics.
For someone, as we progress, physics
keeps changing, and then making new discoveries. New theories are formed,
theories do not just bring new answers. They also create new questions which
are not understood even when looking at the previous theory of physics. This
makes physics exciting and interesting.
Physics is the science that deals with the interaction between the structure of matter and the fundamental components of the universe. In the broadest sense, physics (from the Greek physikos) deals with all aspects of nature at both macroscopic and submicroscopic levels.
The scope of the study of
physics includes not only the behaviour of objects under force keys, but also
the nature and origin of gravitational, electromagnetic and nuclear force
fields. The ultimate aim of physics is to formulate some broad principles,
which bring them all together and explain all such uneven phenomena.
Physics is the foundation of
science. Until earlier times, physics and natural philosophy were used for
science, which aimed at the discovery and formulation of fundamental laws of
nature. As modern sciences evolved, physics - astronomy, chemistry, geology and
physics changed to engineering - all plays an important role in natural
sciences, physics, matter, Can be defined as the science of motion and energy.
Its laws are generally expressed with precision in the language of mathematics.
The ultimate aim of physics is to find laws governing small (microscopic) sub-distances, matter, motion and energy, albeit a fully integrated physical phenomena. The theory has not yet been achieved, which probably will never happen.
Physics developed in the turn
of the 20th century, known as classical physics,
Broadly, it can be responsible for motions of
macroscopic objects which are in relation to the speed of light and heat,
sound, electricity, magnetism, light) move slowly for events like. Modern
developments in relativity and quantum mechanics modify these laws because they
apply to high-speed, very large-scale objects, and small elementary components
of matter, such as electrons, protons, and neutrons.
Physics is Old
Physics was
first introduced to civilizations and was limited to astronomy, although today
we will not understand it. Ancient Egyptians, Mesopotamians, Greeks, and even
New World civilizations such as Maya and Aztec had a complex understanding of
stars.
Each of these were probed to track and predict the motion of the Sun, Moon, and star regions, primarily for the purpose of tracking the weather and understanding the universe at its simplest level.
Physics has
been going on for a long time. We consider the ancient Greeks to be the
'founders' of early physics, because they had a better understanding of the
natural world around them. There are some major ones that you are familiar
with, such as Socrates, Plato and Aristotle.
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Modern physics came centuries later with people like Copernicus, Galileo
and Newton, during the 15– 1600s and 1600s.
There were many important scientific breakthroughs during this time as people discovered more and more about our universe.
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Galileo described many fundamental physical concepts, but by completing the telescope he made many astronomical discoveries, such as sunspots and planetary satellites.
Physics would certainly not be complete without Isaac Newton, whose physics studies are not much suspect, he is best known for his three laws of motion and the law of universal gravitation.
In this way we can say that physics is one of the
most fundamental scientific disciplines, and its main goal is to understand how
the universe behaves. New ideas in physics often explain the fundamental
mechanisms studied by other sciences, and suggest new avenues of research in
subjects such as mathematics and philosophy.
Physics is devoted to understanding how our world
and the universe behave and why it does
• The distance between the Earth and the objects outside our solar system and the distance between our stars and other galaxies.
• The age of our sun and how long we can expect it to burn.
• It is important for new technologies that we use every day from all solar panel technology to wind turbine, engineering design, and manufacture new alloys and polymers.
• Responsible for nuclear physics that has given us
nuclear power, and nuclear medicine which has opened up new avenues of medical
treatment for things like cancer.
Below is a list of the various types of topics
within the science of physics:
Acoustics- Study of sound and sound waves.
Astronomy- Study of space.
Astrophysics- Study of the physical properties of objects in space.
Atomic Physics- Study of atoms, specifically the electron properties of the atom.
Biophysics- Study of physics in living systems.
Chaos- Study of systems with strong sensitivity to initial conditions, so that a slight change at the beginning quickly becomes major changes in the system.
Chemical Physics- Study of physics in chemical systems.
Computational Physics- Application of numerical methods to solve physical problems for which a quantitative theory already exists
Cosmology- Study of the universe as a whole, including its origins and evolution.
Cryophysics, Cryogenics, and Low Temperature Physics-Study of physical properties in low temperature situations, far below the freezing point of water.
Crystallography- Study of crystals and crystalline structures.
Electromagnetism- Study of electrical and magnetic fields, which are two aspects of the same phenomenon.
Electronics- Study of the flow of electrons, generally in a circuit.
Fluid Dynamics and Fluid Mechanics- Study of the physical properties of "fluids," specifically defined in this case to be liquids and gases.
Geophysics- Study of the physical properties of the Earth.
High Energy Physics- Study of physics in extremely high energy systems, generally within particle physics.
High Pressure Physics- Study of physics in extremely high pressure systems, generally related to fluid dynamics.
Laser Physics- Study of the physical properties of lasers.
Mathematical Physics- Discipline in which rigorous mathematical methods are applied to solving problems related to physics.
Mechanics- Study of the motion of bodies in a frame of reference.
Meteorology and Weather Physics- Physics of weather.
Molecular Physics- Study of physical properties of molecules.
Nanotechnology- Science of building circuits and
machines from single molecules and atoms.
Nuclear Physics- Study of the physical properties
of the atomic nucleus.
Optics and Light Physics- Study of the physical
properties of light.
Particle Physics- Study of fundamental particles and the forces of their interaction.
Plasma Physics- Study of matter in the plasma phase.
Quantum Electrodynamics-Study of how electrons and photons interact at the quantum mechanical level.
Quantum Mechanics and Quantum Physics- Study of science where the smallest discrete values, or quanta, of matter and energy become relevant.
Quantum Optics- Application of quantum physics to light.
Quantum Field Theory- Application of quantum physics to fields, including the fundamental forces of the universe.
Quantum Gravity- Application of quantum physics to gravity and the unification of gravity with the other fundamental particle interactions.
Relativity- Study of systems displaying the properties of Einstein's theory of relativity, which generally involves moving at speeds very close to the speed of light.
Statistical Mechanics- Study of large systems by statistically expanding the knowledge of smaller systems.
String Theory and Superstring Theory- Study of the theory that all fundamental particles are vibrations of one-dimensional strings of energy, in a higher-dimensional universe.
Thermodynamics- Physics of heat.
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