1. Introduction Physics

2. “Science is the process of seeking and applying knowledge about our universe.” Science is a process. 1.1 What is Science Science is knowledge, often as opposed to intuition, belief, etc. Science is Systematized knowledge derived from observation, study and experimentation carried on in order to determine the nature or principles of what is being studied. A Science must have PREDICTIVE power

3. 1.2 The Science of Physics Three fundamental aspects of Physics: 1.Describing the organization of the universe. matter and energy 2.Understanding the natural laws that govern the universe. belief that all events follow a set of laws that do not change 3.Deducing and applying natural laws. science as a process Physics is natural sciences or natural philosophy

4. Spring 20084 1.3 Mathematics is the natural language of Physics Physical Reality Our Universe Engineering Geology Astronomy Biology Chemistry Abstraction

5. 1.4 Areas within Physics AreaSubjectExamplesProfessions Mechanics motion and its causesfalling objects, friction, weighrt, spinning objects mechanical engineer, roller coaster designer, aerospace engineer Thermodynamics Physics that deals with the relationships and conversions between heat and other forms of energy. Roller Coasters. Anything that has friction. Cell Respiration. Engineer, Materials Scientists, Thermodynamics Specialist, Welders, Brake Press Operators, Vibrations and wave phenomena Specific types of repetitive motions... the study of visible sound and vibration. Music, people talking, springs, pendulums Seismologist, audiologists, Physicists, Astromomers, Astrophysicists Optics deals with light, reflection and refraction mirrors, lenses Electromagnetism Branch of physics which deals with elecricity and magnetism and the interaction between them. doorbells, electric motorsMechanics, Electricians Relativity particles moving at any speed, including very high speeds particle collisions, particle accelerators, nuclear energy Quantum mechanics behavior of submicroscopic particals.the atom and its parts.electronics, aerospace, engineering, telecommunications.

6. 6 1.5 Mechanics Physics is science of measurements Mechanics deals with the motion of objects oWhat specifies the motion? oWhere is it located? oWhen was it there? oHow fast is it moving?  Before we can answer these questions  We must develop a common language

7. 7 2. Physics: Like a Mystery Story Nature presents the clues Experiments We devise the hypothesis Theory A hypothesis predicts other facts that can be checked - is the theory right? Right - keep checking Wrong - develop a new theory Physics is an experimental science

8. 1.1 The Science of Physics 2.1 Matter and Energy *The universe consists of only matter and energy

9. 1.1 The Science of Physics Inquiry and Observation *We will explore Physics using inquiry through observation.

10. 2.2 Development of Scientific Knowledge Models, Evidence, Analysis and Theories

11. 2.2 Development of Scientific Knowledge Importance of Experiments We use experiments to test and evaluate theories.

12. 2.2 Development of Scientific Knowledge Scientific Evidence Measurements and data Graphs and charts Images and sketches

13. 2.2 Development of Scientific Knowledge Scientific Knowledge and the Solar System Early civilizations believed the Earth was covered by a dome on which the sun, stars and planets moved. In the Middle Ages, people thought the sun, stars and planets circled the Earth. Today we know the earth and planets orbit the sun.

14. 3. Physics is Useful Engineering Medicine and health professions

15. 3 Physics is Useful Business and finance Art, music, and food

16. 3 Physics is Useful The relationship between physics and other fields of science