Physics is the most fundamental physical science and is concerned with the basic concepts and principles that describe the workings of the universe. Physics mainly deals with matter, motion, force, and energy and various types.
There are different various areas of physics and they are:
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1 – Classical mechanics is the study of the motion of objects moving at relatively
low speeds.
2 – Waves and sound is the study of wave motion and its application to sound.
3 – Thermodynamics is the study of temperature, heat, and thermal processes.
4 – Electromagnetism is the study of electricity and magnetism.
5 – Optics is the study and the properties of light, mirrors, and lenses.
6 – Quantum mechanics is the study of the behavior of particles on the microscopic and
submicroscopic levels.
7 – Atomic and nuclear physics is the study of the properties of atoms and nuclei.
8 – Relativity is the study of objects traveling at speeds approaching the speed of light.
We will reach inside into all of these areas, except relativity, and begin with classical mechanics
and the study of motion.
Motion is everywhere. Students walk to class. You drive to the store. Birds fly. The wind
blows the trees. Rivers flow. Even the continents slowly drift. On a larger scale, the Earth
rotates on its axis; the Moon revolves around the Earth, which revolves around the Sun; the
Sun moves in its galaxy; and the galaxies move with respect to one another.
This focuses on describing motion and on defining and discussing terms such as
speed, velocity, and acceleration. These concepts will be considered without the forces that
produce motion.