BIOL-UA 6 Lecture : PhyPHYSICS IGCSE sics IGCSE Revision Guide.pdf
31 Jan 2013
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This is to help you cover all the parts of the course. Use this with the syllabus and your notes. When you need to use your books use the index to find the relevant chapters. Stretching springs, hookes law (f = k x ext), elastic behaviour means returning to shape. Forces between atoms are like springs, using hookes law for wires. Tension and compression in bridges and other simple structures. Turning effects (moments) = f x d , unit nm, newtonmetres. No overall moment if clockwise moment = anticlockwise moments. Adding vectors as nose to tail arrows or as the sides of a parallelogram with the diagonal the total vector. Increasing heat and molecular speed breaking bonds to change state. Cooling, losing heat and decreasing speed to make bonds to change state. Evaporation causing cooling, losing particles at the surface of the liquid.
