What is Physics?

  • Home
  • What is Physics?
Shape Image One

Introduction of Physics

advanced divider

Introduction:

Physics is the study of the properties and interactions of matter and energy. It helps us understand how the universe works, from the smallest subatomic particles to the largest galaxy. It also helps us understand the fundamental laws that govern the behaviour of matter and energy, such as Newton’s laws of motion and the laws of thermodynamics.

Definition:​​

Physics is the branch of science that deals with the understanding and study of natural or physical phenomena involving the relation and interaction between matter and energy.

Example:

Physics is all around us and plays a crucial role in our everyday lives by helping us understand how things work and how we can harness and control the laws of Physics to improve our lives.

Branches of Physics

advanced divider

1- Mechanics:

Mechanics is the branch of physics that deals with the study of motion and the forces that cause motion. It includes the study of objects at rest, objects in motion, and the forces that affect their motion.

Click Here for Example
  • A ball rolling down a hill.
  • A car moving down the road.

2- Thermodynamics:

Thermodynamics is the branch of physics that deals with the study of heat and temperature and their relationship to energy and work. It includes the study of heat transfer, thermodynamic systems, and the laws of thermodynamics.

Click Here for Example
  • A car engine converting fuel into energy.
  • A refrigerator keeping food cool.
  • A steam engine converting heat into mechanical work.

    3- Electricity:

    Electricity is the branch of physics that deals with the study of electric charge and electric fields. It includes the study of electric circuits, electric potential, and electromagnetic waves.

    Click Here for Example
    • A light bulb turning on.
    • A phone charging.
    • A thunderstorm.

    4- Magnetism:

    Magnetism is the branch of physics that deals with the study of magnets and magnetic fields. It includes the study of magnetic forces and magnetic materials.

    Click Here for Example
    • A magnetic compass.
    • A refrigerator magnet.
    • An electric motor.

    5- Atomic Physics:

    Atomic Physics is the branch of physics that deals with the study of atoms and their structure. It includes the study of atomic spectra, the behaviour of electrons in atoms, and the properties of ions and atomic nuclei.

    Click Here for Example
    • How atoms emit light.
    • Behaviour of electrons in atoms. 

    6- Bio-Physics:

    Bio-physics is the branch of physics that applies the principles of physics to the study of living organisms and their functions. It includes the study of biochemistry, cell biology, and genetics.

    Click Here for Example
    • Study of how muscles contract.
    • Behaviour of enzymes.

    Study of the nervous system.

    7- Optics:

    Optics is the branch of physics that deals with the study of light and its properties. It includes the study of reflection, refraction, and the behaviour of light through different materials.

    Click Here for Example
    • How a mirror reflects light?
    • How a rainbow is formed?
    • How a camera works?

    8- Sound:

    Sound is the branch of physics that deals with the study of sound waves and their properties. It includes the study of sound production, sound transmission, and the behaviour of sound in different media.

    Click Here for Example
    • How a guitar produces sound?
    • How sound travels through air?
    • How sound is used in sonar technology?

    9- Plasma Physics:

    Plasma Physics is the branch of physics that deals with the study of plasma, a gas-like state of matter that consists of charged particles. It includes the study of the behaviour of plasma, its interactions with magnetic fields, and its role in natural phenomena such as lightning and auroras.

    Click Here for Example
    • How the sun produces energy?
    • How lightning occurs?
    • How the Northern Lights are formed?

    10- Geophysics:

    Geophysics is the branch of physics that deals with the study of the Earth and its physical properties. It includes the study of earthquakes, plate tectonics, and the Earth’s magnetic field

    Click Here for Example
    • How earthquakes happen?
    • How the Earth’s magnetic field affects compasses?
    • How plate tectonics shape the Earth’s surface?

    11- Astrophysics:

    Astrophysics is a branch of physics that deals with the study of celestial objects and phenomena, such as stars, planets, galaxies, and black holes. It helps us understand the properties and behaviour of these objects, as well as the origins and evolution of the universe.

    Click Here for Example
    • Study of star formation and evolution.
    • Study of Planet.
    • Study of Galaxies.

    12- Particle Physics:

    Particle physics is a branch of physics that deals with the study of the smallest building blocks of matter, called particles. It helps us understand the properties and behaviour of these particles, as well as the fundamental laws that govern their interactions.

    Click Here for Example
    • The study of subatomic particles such as protons, neutrons, and electrons is an example of particle physics.

    13- Nuclear Physics:

    Nuclear physics is the study of the structure and behaviour of atomic nuclei. It is a branch of physics that deals with the properties and interactions of subatomic particles, such as protons and neutrons

    Click Here for Example
    • Nuclear power plants.

    Radiation therapy in medical treatment.

    Quiz

    advanced divider