Chapter 0 An Introduction to Physics Objectives Determine

Chapter 0: An Introduction to Physics

Objectives: ● ● ● Determine what Physics governs and controls Conclude that Physics is the building block of all sciences Identify areas in your life that will be impacted by studying Physics Differentiate between laws and theories Provide reasons why problem-solving techniques are vital to the study of Physics

Definition of Physics ● ● Physics is the branch of science that describes the motion and energy of all matter throughout the universe What are some examples of Physics in everyday life?

● Physics often considered the most fundamental of all sciences Biology: study of living organisms – uses principles of fluid movement in body – Chemistry: study of matter – Physics explains why chemical reactions take place – Geology: study of Earth – use Physics to analyze earthquakes – Astronomy: study of everything outside of Earth's atmosphere – uses laws of gravity & relativity What are some careers that use Physics every day? – ●

What is a Physicist? ● ● A person who is an expert in or who studies Physics Theoretical Physicist: researches previous theories and mathematical models to form new theories in Physics – ● Albert Einstein, Plato, Aristotle Experimental Physicist: focuses on performing experiments to develop and confirm physical theories (ex: Aristotle)

Physics and Technology ● What is the difference between science and technology? – Science is a system of knowledge that is concerned with establishing accurate conclusions about the behavior of everything in the universe – Technology is the field that uses scientific knowledge to develop material products or processes that satisfy human needs/desires

● What are some examples of how science has played a role in improving technology? – Robotics, bridges, superconductors, liquid crystal displays (LCD's), magnetic levitation, etc.

Subdivisions of Physics ● Mechanics ● Electromagnetism ● Thermodynamics ● Fluid dynamics ● Cryogenics ● Mathematical Physics ● Plasma Physics ● Statistical Mechanics ● Solid state Physics ● High-energy Physics ● Geophysics ● Atomic Physics ● Astrophysics ● Molecular Physics ● Acoustics ● Nuclear Physics ● Optics ● Quantum Physics

Theories, Laws, & Problem-Solving ● ● A theory is a scientific conclusion that attempts to explain natural occurrences and typically has been tested in the lab but not proven with absolute certainty Laws are the final degree of scientific certainty Scientific method is an orderly procedure used by scientists Problem-solving method is a procedure that aids in solving problems