Computers and Technology
Submitted By posydon
Physics is all around us. It is what causes the lights to buzz with electricity, the car on the streets to go from point A to point B, and our televisions to run so we can watch our favorite shows. According to Webster dictionary, physics is the science of matter and energy and of interactions between the two. In all physics consists of energy, kinetic energy, potential energy, velocity, acceleration, mass, force, and gravity. Without physics many things would not be possible. In fact, when a person is driving their car they are suing momentum (the quantity of motion of a moving object) and acceleration. Over time our general understanding of physics has helped us develop greater technology than society thought possible. For example, many years ago society believed that flight was impossible until two brothers, the Wright brothers, invented the aircraft. Now of course that was with many trial and errors. According to Bernoulli principle an increase of a flow results in a decrease of pressure. When air hits the leading edge the airflow above the wing travels faster than the flow below the wing. So therefore, the pressure below the wing will be higher than the air pressure above the wing. Because of this difference in pressure, lift is created, and pushes the wings upward. Be that as it may, this is not the only physics principle at work One must also apply Newton’s 1st (every body remains in a state of rest or uniform motion unless it is acted upon by an external unbalanced force), 2nd (a body of mass subject to a force undergoes an acceleration), and 3rd law (for every action there is an equal and opposite reaction). As one can see physics applies to many things in…...