Cutnell & Johnson-PHY 4e Study Guide. AP Physics Study Guide. Free Physics Textbook. WikiPhysics. Xania has nominated himself for use of the Checkuser tools. Please provide your input on this important decision. From Wikibooks, open books for an open world <Cover and interwiki Introduction Section One Units S.I. unitsKinematics Displacement, velocity, accelerationForce Newton's 3 Laws of MotionMomentum Elastic and inelastic collisionsFriction and the Normal ForceWork Force times distanceEnergy The potential to do Work Section Two Section Three FluidsFieldsThermodynamicsElectricity Charge, current, electric fieldsMagnetism Magnetic dipoles, magnetic fieldsElectronics Resistance, voltage, capacitance, inductance (incomplete)Optics Light, lasers etcTheories of Electricity Theories behind Electricity Appendices. PhET. The Physics Classroom.