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Conceptual Physics Study Guide for Chapters 2-4 You will need to know, apply, comprehend, analyze physical situations described in the above chapters. Define terms and know/utilize their units, select and employ formulas to solve problems involving these chapters: Ch2 Equilibrium, Ch3 Newton’s 1st Law, and Ch4 1 Dimensional (Linear) Motion Ch2 Force, Mechanical Equilibrium, Vector, Scalar, tension, Equilibrium at rest and while moving Ch3 Newton’s 1st Law, mass Ch4 Speed/unit, velocity/unit, acceleration/unit, acceleration due to gravity/amount and unit , Free Fall BIG 5 Phormulas V=d t a=v vf = vi + at vf = vi + ad d = 1/2 at 2 t g can be substituted for a in acceleration problems when an object is falling.