WJEC Physics for A2: Study and Rev Guide

7 Re v i s ed i t ! Circular motion The kinematics and dynamics of objects moving in a circle; the concepts you will need to handle the motion of objects from fairground rides and slingshots to planets and galactic stars p8–12 Vibrations Simple harmonic motion (shm); its mathematical and graphical expression; its application to spring systems; the response of objects to periodic driving forces including resonance in structures such as bridges. p13–24 Kinetic theory of gases The behaviour of gases in terms of their molecules; the equation of state for ideal gases; the assumptions and predictions of the kinetic theory of gases; the molar gas constant, the Boltzmann and Avogadro constants; the kinetic energy of gas molecules. p25–31 Thermal physics Thermodynamic systems; the rst law of thermodynamics; the internal energy of a gas; p-V graphs; internal energy changes in solids and liquids; heat ow caused by temperature differences; speci c heat capacity. p32–40 Nuclear decay Nuclear decay as a spontaneous random event; the nature and penetrating power of a , b and g radiation; handling background radiation; activity and the decay constant; exponential decay and the use of logarithms in nuclear decay calculations. p41–51 Nuclear energy The meaning and use of E = mc 2 and the uni ed mass unit; calculations of nuclear binding energy; conservation of mass/ energy to particle interactions; the importance of binding energy per nucleon in ssion and fusion. p52–57 Basic notes Good grasp Fully revised