Before taking a class in physics I thought of physics as a sophisticated form ofscience. I really didn’t know anything about the nature of physics. It wasn’t until Iactually took the class that I realized my predictions were correct; physics is asophisticated science and my knowledge about our universe wasn’t so great. I know what physics is now. Physics is more than we can imagine. The subjectliterally surpasses our deepest thoughts, and not in false pretence. Physics governseverything that has happened, is happening, and will happen in the future. It’s a form ofscience that studies matter and the motion matter has through space time. Physics explains how things work and the reason "why" things operate the waythey do. Taking this physics class helped me learn about mechanics such as: Forces (friction, gravity, air resistance) Torque Simple machines (levers, pulleys, inertia) Rotation Pendulums Collisions Energy (kinetic, potential, thermal, chemical, electrical, electrochemical, sound, and nuclear) Conservation of energy And projectile motion Without physics, our technology wouldn’t be what it is today and we wouldn’t havethe intelligence to space travel. We wouldn’t have any knowledge about sound and lightwaves. Phones, automobiles, and televisions wouldn’t be in existence without physics.Physics contributed to the invention of electricity. It explains magnetism and the force
on charged particles. Everything around us is made up of tiny particles, called electronsthat are only visible with the use of a powerful microscope. Electrons have an electricalcharge and when electricity moves, a magnetic field is created. In addition to this,physics provides us with the mathematical laws and formulas that describe the relationsof and between physical objects. We use the formulas to calculate acceleration, current,energy, force, momentum, power, speed, temperature, time, velocity, volume, and work.Physics is the most basic and fundamental science. It is the key to understanding ourlife and what lies beyond our world. It is the foundation to many discoveries, and holdsthe direction of our future technology.