UNDERSTANDING PHYSICS AND BENEFITS
Physics comes from the Greek meaning
"NATURAL". Physics is the science that studies the nature and
symptoms of the objects in nature. These symptoms at first is what is
experienced by our senses, such as vision find optics or light, hearing find
learning about sound, and the sense of touch can feel the heat.
Why do we need to study Physics? Physics
be the fundamental science, because it deals with the structure and behavior of
objects, especially inanimate objects. Historically, physics is the science of
the oldest, because it begins with observations of the motions of heavenly
bodies, how the trajectory, period, age, and others. These disciplines have
begun centuries ago, and evolved in the time of Galileo and Newton. Galileo
formulated the laws of falling objects, while Newton studied motion in general,
including the motion of the planets in the solar system.
In modern times, as now, the physics
strongly supports the development of technology, industry, communications,
including engineering (engineering), chemistry, biology, medicine, and others.
Physics can answer questions about fenomenafenomena interesting. Why can the
earth around the sun? How the air can hold heavy aircraft? Why is the sky blue?
How broadcast / TV shows can reach tempattempat far? Why the electrical
properties is indispensable in communication systems and the industry? How
missiles can be directed to targets located very far, even intercontinental?
And finally, how the aircraft can land on the moon? These are all studied in
various fields of physics.
Physics broadly divided into two groups,
namely the classical physics and modern physics. Classical physics comes to
symptoms captured by the senses. Classical physics includes mechanics,
electricity magnetism, heat, sound, optics, and wave the border between
classical physics and modern physics. Modern physics developed from the 20th
century, since the discovery of Einstein's theory of relativity and the
radioactivity by the Curie family.
Physical Relationship With Other Sciences
The purpose of studying the physics is so
that we can know the basic parts of the body and understand the interactions
between the objects, and be able to explain the natural phenomena that occur.
Although physics is divided into several areas, the universal laws of physics
apply. Overview of a particular phenomenon from the field of physics will get
the same results when viewed from the other areas of physics. In addition to
the basic concepts of physics not only supports the development of physics
itself, but also the development of other science and technology. Physics, pure
and applied research support. Geologists in his research using gravimetric
methods, acoustic, electric, and mechanics. Modern equipment in
hospitals-hospitals applying physics. Astronomers need spektografi optical and
radio engineering. Likewise, experts in meteorology (the study of weather),
Oceanology (marine science), and seismology require physics.
Physics in the Field Measurements
Physics was born and developed from the
results of experiments and observations. Experiment (experiment) and
observations (observation) requires measurements (measurement) with the help of
measuring tools, in order to obtain data / observations quantitative. For
example, the measurement results obtained in an experiment measured 4 meters
long, 10 cm3 volume of water at a temperature of 15 ° C. In physics, length,
volume, and temperature is something that can be measured. Something that can
be measured is called scale. Magnitude has two main components, namely the
value and unit. In physics, keep in mind that not all units have the physical
quantities, for example, refractive index and density relative.
That understanding of physics and its
benefits, hopefully article Science Lovers can share useful and helpful friend
of Science Lovers.
