INTRODUCTION TO PHYSICS

. November 18, 2018 No comments
Physics is often described as the study of matter and energy. It is concerned with how matter and energy relate to each other, and how they affect each other over time and through space. Physicists often ask the fundamental questions: how did the universe begin? How and of what is it made? How does it change? What rules govern its behavior?
The Concepts of Physics
Explain the concepts of physics
Physics is one of the branches of science which explains about how things behave or occur in our environment. For example, how an airplane flies, how sound travels, why ice melts, how things move, and how they come to a stop.
Physics enables us to know the uses of concepts of force, energy, motion, structure, size and shape of materials and the way they affect each other, behave or change.
Therefore, Physics is defined as the study of the relationship between matter and energy.
A person who studies and deals with physics is known as a physicist.
Physics uses scientific methods to form theories and concepts which can be used by different scientists to design, make, create, use and change different kinds of technology so as to make life more useful as well as simplifying work.
The Relationship between Physics and other Subjects
Establish the relationship between physics and other subjects
Physics is one of the wide fields of study and it relates with other subjects as follows:
i. Chemistry – Chemistry deals with matter and its properties. Chemistry uses the idea of Physics in many aspects such as: measurement of mass, volume and density of chemicals; designing of apparatus for storing chemicals; designing high pressure cans that can store gases or liquids such as perfumes, mosquito repellents, and air fresheners so that when they come out, they can spread over large distances.
ii. Biology – Biology deals with living things and life. It requires the knowledge of Physics to know how sunlight (light energy) is transmitted to green plants to make them produce their own food in a process known as photosynthesis.
iii. Mathematics – Mathematical concepts and formula are widely used in teaching and learning of Physics. Formula like Distance travelled = Speed x Time, simplify the way Physics concepts can be applied and understood.
iv. Geography – Geography deals with the study of man and his surroundings. Physics has a big relationship with Geography such as in the technology used for measuring weather and climate. Also, nature, structure and components of the universe are well explained using Physics concepts. Physics explains how the formation of rocks takes place and the way the rocks disintegrate to form soil.
Importance of Studying Physics
State the importance of studying physics
Why Study Physics?
  1. Physics helps us to understand how the world around us works,from bottle openers, light bulbs and cell phones to muscles, lungs and brains; from paints, musical instruments and movements, to cameras, cars and buildings; from earthquakes, tsunamis and hurricanes to thunder and lightning, and from our DNA genes, to the earth formation.
  2. Physics helps us to organize the universe. It deals with fundamentals, and helps us see the connections between seemly disparate phenomena. Physics gives us powerful tools to help us express our creativity, to see the world in new ways and then to change it.
  3. Physics provides quantitative and analytic skills needed for analyzing data and solving problems in science, engineering and medicine, as well as in economics, finance, management, law and policy.
  4. Physics is the basis for most modern technology, and for the tools and instruments used in scientific, engineering, medical research and development. Manufacturing is dominated by physics-based technology.
  5. Physics helps you to help others: Physics is an important part of the Medical Field. Medicine without Physics technology would be impossible. Schools without qualified Physics teachers cut their students off from a host of well-respected, well paying careers.

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