Physics
The branch which studies the matters and their motions is
known as physics. The word physics is a Greek word which is physic means the
knowledge of nature it means the physics is a natural science in which we study
the matters and its movement and also its behavior with time and space as well
as force and energy are also common in this regard. In this branch we study the
universe behaves basically and physics is known as oldest disciplines. In the past, physics was a part of biology
and chemistry but in 17th century, physics was separated from all
others subject and it put in isolate subject in which only matters was studied.
Physics has many sections such as quantum chemistry and biophysics are more
important. Physics play important contributes through advances in many new research
and technologies which arise from much theoretical work such as understanding
of electromagnetism. This understanding
led to the development of many new products that have transferred to modern
society like computers, television and many new weapons.
History
Article: Explain Astronomy
Astronomy is also known as natural science or oldest
science. In the past, ancient Egyptians have knowledge and a basic
understanding of the movements of Moon, Stars and Sun. The stars are known as a
target of worship and represent gods as well as their explanation remain unscientific
due to lack of evidences. Asger Aaboe says that, the origin of astronomy can be
found in Mesopotamia.
Article: Explain
Classical Physics
By using physics as quantitative and experimental the
science become an isolate science and basic development in this regard was the
discovery of geocentric model of the solar system was most common. The role of
Newton was most common as compared to others physiologist. Because Newton discovers
the laws of motion and universal gravitation were important laws of Newton
work. Thermodynamics, chemistry and electron genetics are greater discoveries
which are resulted from research efforts during the industrial time when energy
needs increased. The classical physics remain widely used all objection scale
basis and they also provide approximation in these situations. The theories
such as quantum theory modify their classical physics at such scales.
Modern physics
Modern physics is connected with the behavior of energy and
matter under different conditions on large or small scales such as nuclear and
atomic physics only study or small scales at which chemical elements are easily
indentified and the physics of such elements is on smaller scales it is
connected with the basic units which are known as most important scales. Modern physics are also known as high energy
physics due to extremely high amount of energies is very necessary for
producing of many types of different particles in accelerators. In this regard,
two most famous theories of modern physics present a various picture of the
concept of time, space and matters as compared to classical physics.
Applied physics
This term deals for physics research which is necessary for
a particular use and it contains a some classes in an applied physics. The applied
physics use physics in various types of scientific research for example, people
are working in accelerator physics and might seek to form better particle
detector for scientific research in theoretical physics. Physics is mostly used
in engineering purposes because in this branch we study matters and natural
processes which are used for getting more benefits for forming buildings etc.
Article: Explain Scientific
Method
In physics, scientific methods are used to test a theory. With
the help of scientific method we can get observation by individually and
experimental to prove a theory is true or file.
Theory and experiment
By theory we can develop mathematical model that is proved
by experimentally and also predict future results. Theoretical physics is
connected with philosophy and also deals with many types of hypothetical issues
like high and multiversity dimensions. A theorist gives many ideas and explores
these ideas and work on these ideas to making testable prediction of his work. Theoretical physics is concerned with
technology and engineering but experimental physics is involved in many basic researches
design and also perform many experiments with new and modern equipments like
accelerator and lasers are more common in this regard and many new technologies
like MRI and transistors are more used in experimental physics by
physiologists.
Scope Of physics
In the branch of physics, we deals matters and modeling the
natural world with the help of scientific methods to explains many world secrets
that have important for the all living organisms and have many beneficial uses
. This branch covers a long range of phenomena, from elements and their
particles like electron, neutrons on the largest scales in the industry of
physics. Due to this reason, physics is also known as fundamental science and
the aim of physics is to develop and describe the different techniques that
occur in nature in the form of simple way.
According to ancients chine’s the rocks are attracted
towards each other by a force which is not visible by eyes and this force we
known as magnetisms force which is responsible of attraction of various types
of matters. This force was first studied in 17th century but before
17th century, the Chinese discovered this force without giving this
name.
Atomic, optical and
molecular physics
This branch of physics means the study of atoms, molecules
and optical matters and the interaction on the scales of molecules and atoms on
single basis. These three areas are remaining in one branch due to their
relationship and the similarity of energy and methods and these areas can treat
their subjects with the help of microscope.
With the help of atomic physics we can study electron and
their shells and configuration of whole shells but research only focus on
cooling, trapping and control of ions and atoms such as hydrogen bomb.
Molecular physics only deals with structures of atoms and
ions and their external and internal attraction with light and matter. The
optical physics deals with properties of optical fields and their relationship
with matters and their all ions which are present in atoms and ions with the
help of microscope because we are not able to observe the structure of atoms
and ions with eyes. Therefore, with the invention of microscope it was easy to
study the atoms and ions.
Condensed Matter
Physics
This branch of physics deals with the fields of physics
which are studied with the help of microscope and we can study easily
properties of such matters. The most famous example arre liquids and solids
that arise from the bonding by way of a
special force which is known as
electromagnetic force between atoms and ions.
Condensed matter is a large field of physics and grew out of
solid-state physics which is known as famous or main subfields. Philip Anderson
was the first persone who used the term condensed physics in 1976.
Astrophysics
It is known as the application of theories and scientific
methods of physics to study the stellar evolution and structure because,
astrophysics is a subject typically apply many types of useful disciplines of
physics such as electromagnetism, mechanics as well as quantum and
thermodynamics mechanics are more obvious in this regard. According to Karl
jansky in 1931 century, the ratio signals were emitted by bodies explain the
sconce of radio astronomy and space exploration is responsible of expanding of astronomy because interference with earth’s atmosphere
make space based new observation way which is important for x-ray and
gamma-ray.
Research
Research is very important factor or subject in the branch
of physics.
Article: Explain the
Natural philosophy
This branch has a
common origin in Greece during ancient time(Arabic Time of Period) in 650 BCE
when philosophers such as Thales canceled non-naturalistic explanations for
natural and proclaimed techniques that every special event had a natural reason
and they proposed many new ides which are very important and are verified by
main reasons and many observation and also many hypothesis proved true.aby experimentally and it was proved right after 200o years and proposed by Leucippus and his colleagues.
Islamic Role in
Physics
Much Islamic scientist work in the field of physics
especially in optics and vision. The work of bin sahl, al-kindi is most
important in this regard. A famous book The book of optics was written by a Muslim
scientist Al-haitham in which he tells about many new theories such as the study about pinhole camera and he
also explain how light enters into the eyes and built a famous camera which is
known as obscura in modern time with the help of this book. The seven album of
this book explain many positive influenced thinking about disciplines from a
basic theory of visual perception in the natural of medieval art in West and in
the East about 600 years more period of time. After this, European scholars
were also in debt but the work of al-Hay ham was great as compared to others
non-Muslims scientist of the whole world in the past period of life. This book
has a good impact on Europe because, later many European scholars were able to build
the many new same devise by following the rules of this Muslims scientist in
the modern times are today, are also getting many information’s from this book.
Electromagnetism
This branch deals with electricity and magnetism. This is
also a branch of physics which only deals with electrical phenomenon and their
force which are know electromagnetic forces that produce in electrical charged
particles. This force make electromagnetic fields like magnetic and electric
fields and light field is also important in this regard. The word electromagnetism
is derived from two Greek words amber and magnetism which means magnesium type
stone.
Thermodynamics
The branch which deals with work, temperature and hat or
internal energy is known as thermodynamics. Overall, thermodynamic developed a
desire to increase the ability of steam engines which are invented in the past.
The starting point was laws of thermodynamics and also four principles which
make an axiomatic basis. According to first laws, energy can be easily exchanged
between physical systems as work or heat. Are more common in this regard. The
interaction in thermodynamics between large objects are studied and also organized
in various categories. We know that a
system is formed of many particles, whose motions or movements define its
properties and these parties are related to each other with the help of
equations of state. The thermodynamics is used to explain how system answered
to changes with such types of tools. The history of thermodynamics start with
the work of a famous scientist Otto von Guericke in 1650 designed the world’s
first vacuum pump and disproves Aristotle supposition which was long-held about
the invention of vacuum pump. Late, as team was built. With the help of this steam
a piston and a cylinder was created. The concept of laten heat and its
capacity, which were important for the invention of thermodynamics were
produced by Joseph black who was a professor in the university of Glasgow. The
first book was also written on thermodynamics in 1859 by a writer who was William
Rankine. This man was a professor in the University of Glasgow. The work of
James Clerk Maxwell, Max Planck and J.Willard is most common in the branch of
thermodynamics. In 1873-76, A American professor of physicist Willard Gibbs
published a paper on the Equilibrium of Heterogeneous Substances in these
papers he explains how thermodynamics processes in chemical reactions can be
analyzed by studying valium, entropy, pressure and temperature of the
thermodynamics system in this manner. In classical thermodynamics, a user use microscope
make able properties and it is also used to exchange of work, energy and heat based
on the rules of laws of thermodynamics. In 19th century, the first
level of understanding of the subjects was developed. Equilibrium thermodynamics is a systematic way
o transformation of energy and matters in system as they reach in equilibrium state.
The equilibrium means balance. It is a well defined state.
Writer Muhammad Sulaiman
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Hello students, Computer Science mcqs in pdf will be share tomorrow.
Thanks You
NTs Teacher