Holt Physics?Chapter 1 The Science of Physics Important Chapter 1 Topics: Physics (?the study of the physical world?-p.4) is an attempt to explain and understand the world around us--from tiny subatomic particles to massive swirling galaxies! The scientific method-p.6 Dimensional analysis, or the conversion algorithm-p.22 Significant figures-p.16 Scientific notation Chapter 2 Motion in One Dimension Section 2.1 Displacement and Velocity One dimensional motion=linear motion (back and forth) Frame of reference and relativity make physics easier Displacement is the difference between where something starts and where it ends up. It is expressed as ?x = xf ? xi where xf is the final position and xi is the initial position. (insert gecko picture from p.41)