FORM ONE PHYSICS STUDY NOTES TOPIC 1-3.

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TOPIC 1: INTRODUCTION TO PHYSICS

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 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 described as the general scientific study of nature that aims to understand the behavior of the universe.
Physics, therefore tries to explain how things happen around us or why
they happen the way they do. For example, how a car moves from one point
to another? Why unlike poles of magnets attract? Why does a mango fall?
How is a rainbow formed? And so on.
Physics
as a subject uses concepts like force, energy, mass, power among others
to explain different phenomena. Energy, for example, may take the form
of motion, light or electricity. In so doing, students of Physics get to
learn more about matter and energy and how they interact with each
other.
Therefore, Physics is the study of the relationship between matter and energy.
The people who study and work professionally in this field are called physicists.
Physics
is an experimental science subject, which creates theories that are
tested against observations of the natural world. Theories are used to
explain why things behave the way they do. This is why physicists always
insist on accurate measurements and a record of results during each experiment.
Once
these results are in precise mathematical forms, technologists make use
of such data when designing devices such as radios, televisions, mobile
phones, computers, and artificial satellites. All these things are for
the betterment of human life.
The Relationship between Physics and other Subjects
Establish the relationship between physics and other subjects
Knowledge
of physics is also applied in other subjects. The principles of
electrostatics and particulate nature, for example, are used to explain
reactions in chemistry. The tools, implements and farm machinery learnt
in agriculture as well as the process of dating historical remains are
applications of physics.
Physics
provides the basis for biology. Without space, matter, energy and time
— components that make up the universe — living organisms would not
exist. Physicist Richard Feynman said that everything on earth is made
of atoms, basic units of matter, that constantly move. Since biology has
its foundation in physics, it applies physical natural laws to the
study of living organisms, according to Muskegon Community College. For
instance, physics helps explain how bats use sound waves to navigate in
the dark and how wings give insects the ability to move through the air.
The American Physical Society shares that many flowers arrange their
seeds or petals in a Fibonacci-like sequence to maximize exposure to
light and nutrients. In some cases, biology helps prove physical laws
and theories. Feynman states that biology helped scientists come up with
the law of conservation of energy.
Importance of Studying Physics
State the importance of studying physics
Why Study Physics?
  1. Physics helps us tounderstand how the world around us works,
    from can openers, light bulbs and cell phones to muscles, lungs and
    brains; from paints, piccolos and pirouettes to cameras, cars and
    cathedrals; from earthquakes, tsunamis and hurricanes to quarks, DNA and
    black holes. From the prosaic . . . to the profound . . . to the
    poetic. . .
  2. Physics helps us toorganize the universe.It deals with fundamentals, and helps us tosee the connectionsbetween seemly disparate phenomena.Physics gives us powerful tools to help us toexpress our creativity, to see the world in new ways and then to change it.
  3. Physics providesquantitative and analytic skillsneeded foranalyzing data and solving problemsin the sciences, engineering and medicine, as well as in economics, finance, management, law and public policy.
  4. Physics is the basis for most modern technology,
    and for the tools and instruments used in scientific, engineering and
    medical research and development. Manufacturing is dominated by
    physics-based technology.
  5. Physics helps you to help others.Doctors
    that don’t understand physics can be dangerous. Medicine without
    physics technology would be barbaric. Schools without qualified physics
    teachers cut their students off from a host of well-respected, well
    paying careers.

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