PHYSICS (UNIVERSITY)

In this unit you will learn about Kinematics. Kinematics is the branch of classical mechanics which describes the motion of points (alternatively “particles”), bodies (objects), and systems of bodies without consideration of the masses of those objects nor the forces that may have caused the motion.

Kinematics as a field of study is often referred to as the “geometry of motion” and as such may be seen as a branch of mathematics. Kinematics begins with a description of the geometry of the system and the initial conditions of known values of the position, velocity and or acceleration of various points that are a part of the system, then from geometrical arguments it can determine the position, the velocity and the acceleration of any part of the system.

The study of the influence of forces acting on masses falls within the purview of kinetics. For further details, see analytical dynamics.

In this unit you will learn about Dynamics. In physics, quantum dynamics is the quantum version of classical dynamics. Quantum dynamics deals with the motions, and energy and momentum exchanges of systems whose behavior is governed by the laws of quantum mechanics. Quantum dynamics is relevant for burgeoning fields, such as quantum computing and atomic optics.

In this unit you will learn about Work, Energy and Power. In physics, energy is a property of objects which can be transferred to other objects or converted into different forms. The “ability of a system to perform work” is a common description, but it is misleading because energy is not necessarily available to do work.

For instance, in SI units, energy is measured in joules, and one joule is defined “mechanically”, being the energy transferred to an object by the mechanical work of moving it a distance of 1 metre against a force of 1 newton. However, there are many other definitions of energy, depending on the context, such as thermal energy, radiant energy, electromagnetic, nuclear, etc., where definitions are derived that are the most convenient.

In this unit you will learn about Sound and Waves. In physics, sound is a vibration that propagates as a typically audible mechanical wave of pressure and displacement, through a medium such as air or water. In physiology and psychology, sound is the reception of such waves and their perception by the brain.

In this unit you will learn about Electricity and Magnetism.

Electromagnetism is a branch of physics which involves the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.

The electromagnetic force usually shows electromagnetic fields, such as electric fields, magnetic fields, and light. The electromagnetic force is one of the four fundamental interactions in nature. The other three fundamental interactions are the strong interaction, the weak interaction, and gravitation.