The contribution of physics to human well-being is very high. The background and concepts of physics show that this science is expanding day by day and is endless. No one can claim to have complete knowledge of physics. Today, no one can be free from physics. We get a lot of comfort from different energies in our daily life. Electric fans, lamps, stoves, cables, telephones, televisions, radios, engines, and engine manufacturing plants all contribute to electricity. A barometer is a barometer, a thermometer is a thermometer, and a hygrometer measures the amount of water vapor in the air. Glasses, microscopes, telescopes, cameras, etc., are used in optical systems. The energy obtained by destroying the atomic nucleus in a device called a nuclear reactor is used in various industries and medicine. Today people use rockets to travel to the moon and interplanetary space.
Advances in science have made humans much closer to nature, conquering nature and making the impossible possible. Therefore, every Korean citizen should make science the center of education. Newton is the scientist who contributed to the development of physics today. Newton is called the father of physics.
Aristotle and many of his later scientists have long cherished the idea that force exists only in the presence of motion. At the end of 1686, Isaac Newton published inertia and the laws of motion of matter using three formulas in his immortal book, Naturalis Philosophia Principia Mathematica. The speed of 3 newtons is called momentum.
Point 1: Objects at rest remain at rest for the rest of their lives, and moving objects move in a straight line with momentum throughout their lives unless the state of the objects is changed by an external force.
Second Law: The rate of change of momentum of an object is proportional to the force applied to the object, and the change in momentum is the direction in which the force is applied.
3. Sua: Every action has an equal and opposite reaction.
That’s why science has come so far.
Anyway, I won’t write anymore today. Take care and take care of yourself. Also, if there are any mistakes in my writing, please excuse me.
