Mathematical modelling. Prediction and verification or falsification of theories. Speculation or Prediction. Science will be not having any final theory. The observations which are made using improved, accurate tools will be creating improved knowledge and perspective.
Quantum mechanics was developed in order to deal with atomic and nuclear phenomena. Work of Ernest Rutherford on nuclear model of atom made the basis of quantum theory suggested by Niels Bohr. The discovery of antielectron positron was led by the Antiparticle theory of Paul Dirac by Carl Anderson. Natural science can be considered as a branch of science which is discussing about the description, prediction, and understanding of the natural phenomena which is on the basis of an observational and empirical evidence.
It will be included of the disciplines mentioned below:. Physics can be defined as a study of the basic laws of nature and their usage in various natural phenomena.
Physics can be called the study of the physical world and matter and its movement through space and time, along with connected concepts like energy and force. There are two principal kinds of approaches in Physics which are listed below:. Unification: This is a method including all of the phenomena in the world in the form of a group of universal laws in various domains and conditions.
The law of gravitation will be applied both on a falling apple from a tree and the movement of planets around the sun can be considered as examples. Every electric and magnetic phenomenon will be controlled by Electromagnetism laws. Reduction is a method for deriving characteristics of complex systems from the properties and interaction of its constituent parts. We can take an example that the temperature studied under thermodynamics can be also connected to the average kinetic energy of molecules in a system kinetic theory.
Effect and uses of Physics:. We can describe a phenomena occurring over a bigger magnitude using a simple theory. We can use the experiments and observations for developing new theories in the case of unidentified phenomena and make improvement for old theories in the existing phenomena.
We can develop devices by the use of physics laws. Scope of Physics will be wide since it covers quantities with length magnitude as big as m and more than that astronomical studies of universe and as low as m or less study of the electrons, protons etc. In the same way, the time scale is ranging from s to s and mass is ranging from kg to kg.
Physics can be categorised broadly into two kinds on the basis of its scope - Classical Physics and Modern Physics. Classical physics is a branch which is dealing with macroscopic phenomena while modern physics will be dealing with microscopic phenomena. Macroscopic Domain:. It will be including subjects listed below:. Examples are listed below:. Propulsion of rocket using the ejecting gases.
Water or Sound waves. Under a load, a bent rod is in equilibrium. Electrodynamics is a branch which is involved with electric and magnetic phenomena related with charged and magnetic bodies. Here are some examples for it:. Movement of a current-carrying conductor in a magnetic field. The response of a circuit to an ac voltage signal. The generation of radio waves in the ionosphere.
Optics — This branch is discussing about the natural processes involving light. The examples will be,. Reflection and refraction of light. Dispersion of light through a prism. Colour shown by thin films. Thermodynamics is a branch with systems in macroscopic equilibrium and varies in internal energy, temperature, entropy and so on , of systems under the application of the external force or heat.
Examples are,. The efficiency of heat engines. Direction of physical and chemical process. The microscopic domain will be processed at small scales such as atomic, molecular and nuclear. It will be discussing the interaction of probes such as electrons, photons and other elementary particles. Quantum theory has been made to discuss these phenomena.
There are some reasons for the improvement of Physics. Qualitative analysis along with quantitative analysis. Universal laws are applicable in various contexts. Approximation approach complex phenomena broken down into a collection of basic laws.
Extracting and focusing on necessary characteristics of a phenomenon. It cannot be proven although can be verified by the use of a series of experiments. Using this, a huge number of phenomena are being explained. These assumptions are created from experiments, observation and a huge number of statistical data. There are numerous examples in which Physics and its concepts paved the way to inventions as mentioned below.
The steam engine got invented during the industrial revolution in the eighteenth century. Development of wireless communication after the discovery of laws of electricity and magnetism. Neuron-induced fission of uranium, attempted by Hahn and Meitner in , showed to the formation of nuclear power reactors and nuclear weapons. Electricity has been produced from solar, wind, geothermal etc. Fundamental Forces in nature:. The forces which is visible in our daily life such as muscular, friction, forces due to compression and change in length of strings and springs, fluid and gas pressure, magnetic, electric, interatomic and intermolecular forces are derived forces since their originations are because of a few fundamental forces in nature.
These fundamental forces are as mentioned below:. Enter new password for your Vidyakul Account. Password must be atleast 8 characters long. Signup now to download free sample papers and notes. Already have an account? By filling this form you agree to our Terms and Conditions. Launch Your Course Log in Sign up. Menu Classes.
Competitive Exam. Class Notes. Graduate Courses. Job Preparation. Geophysics It is the physics of the Earth and its environment in space Its subjects include the shape of the Earth its gravitational and magnetic fields, the dynamics of the Earth as a whole and of its component parts.
Tech, B. MSc and PhD Unlike other engineering degrees such as aerospace engineering or electrical engineering EP does not necessarily include a particular branch of science or Physics Instead EP provides a more thorough grounding in applied Physics of any area chosen by the student such as optics nanotechnology micro fabrication, mechanical engineering electrical engineering control theory aerodynamics energy or solid state Physics Plasma A plasma s a gas in which an important fraction of the atoms is ionized so that the electronics and Magneto Hydrodynamics MHD Magneto fluid dynamics or hydro magnetic is the branch of Physics which studies the dynamics of electrically conducting fluids Examples of such fluids include plasma liquid metals, and salt water The word magnetohydrodynamic MHD is derived from magneto - meaning magnetic field and hydro-meaning liquid and dynamics meaning movement The idea of MHD is that magnetic fields can induce current in a moving conductive fluid, which create forces on the fluid, and also change the magnetic field itself Space Physics It is also known as space plasma physics It is the study of plasmas as they occur naturally in the universe As sucht encompasses a far-ranging number of topics.
Super fluidity It is state of master in which the matter benaves like a fluid without viscosity and with infinite thermal conductivity The substance which looks like a liquid, will flow uncontrollably, and also will be at exactly the same temperature throughout itself. It is an electrical resistance of exactly zero which occurs in certain material below characteristic temperature weak interaction and gravitation Electromagnetism is the force that causes the interaction between electrically charged particles the areas in which this happens are called electromagnetic fields Electromagnetism in also the force which holds electrons and protons together inside atoms which are the building blocks of molecules This governs the processes involved in chemistry which anse from interactions between the electrons inside and between atoms Q.
What are physical quantities? Discuss its different types and to measure the base quantities. Physical Quantities All those quantities in terms of which law of physics can be described are called physical quantities Types of Physical Quantities Physical quantities are divided into. For more content related to this post you can click on labels link. You can give your opinion or any question you have to ask below in the comment section area.
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