Physical World — Chapter Summary

Physics is a branch of science

Physics is a branch of science that studies nature and natural phenomena. The word Physics comes from a Greek word meaning nature, and Science comes f

The scientific method has four steps

The scientific method has four steps: observation of facts, proposing a theory or hypothesis, testing predictions from the theory, and modifying the t

Physical processes involve very large ranges

Physical processes involve very large ranges of length, mass, and time. Length ranges from 10^-15 m to 10^26 m, mass from 10^-30 kg to 10^30 kg, and t

Complex phenomena can be understood because

Complex phenomena can be understood because nature shows regularity and symmetry, many diverse phenomena can be explained by a few basic laws, and les

The main branches are Mechanics

The main branches are Mechanics, Waves and Oscillations, Heat and Thermodynamics, Properties of Matter including Fluid Mechanics, Electrodynamics, Opt