3. What is physics? Physics is the study of the physical world. The goal of physics is to use a small number of basic concepts, equations, and assumptions to describe the physical world.

4. You already know some physics.

5. Physic problems deal with…. Temperature Size Motion Position Shape Color

6. Areas of Physics Mechanics-motion and its causes

7. Areas of Physics Thermodynamics-heat and temperature

8. Areas of Physics Vibrations and Wave Phenomena

9. Areas of Physics Optics-light

10. Areas of Physics Electromagnetism-electricity, magnetism, light

11. Areas of Physics Relativity-particles moving at any speed, including very high speeds

12. Areas of Physics Quantum mechanics-behavior of submicroscopic particle

13. One Scientific Method Observation -leads to a question Hypothesis -a “reasonable guess” as why something happens; must be testable Experiment -to test hypothesis; must be controlled— change only one variable at a time Evaluate results Conclusion – does data support hypothesis Revise hypothesis if necessary

14. Models Simplified models are used to make evaluation and experimentation easier. Too hard to evaluate all aspects of a situation at one time. 1 st step in making a model—determine your system

15. Basketball Example

16. Other Models Computer Models Small-scale replicas

17. Assignment- See syllabus