Notes questions from pages 150 to 159 (a) Explain the difference between a renewable and a non-renewable energy source. (b) Give three examples of each. Briefly describe how the following energy sources can be used to produce electricity: (a) wind; (b) water; (c) geothermal; (d) solar...
When we draw a ray diagram and a ray of light hits the surface of an object we add a line to the diagram called the normal. The normal is drawn at right angles (90°) to the surface the ray has hit. The normal is drawn in as we can measure the angle between the ray and the ...
syllabuses 02 2、记笔记&整理笔记 课堂上记笔记固然很好,但更重要的是课下整理笔记。 整理笔记的过程就是复习、记忆和理解以及提出自己问题的过程,对考纲要求的物理定义,概念,定律和定理等深入理解并会用英文复述。 03 3、善用资源 资源包括:教材,老师发的习题,老师发给学生的ppt,真题,revision notes以及flash ca...
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PHYSICS IGCSE 2012 EXAM REVISION NOTESBy Samuel Lees and Adrian Guillot1.General physics1.1lengthandtime1.2Speed,velocityandacceleration1.3Massandweight1.4Density1.5Forcesa.Effectsofforcesb.Turningeffectc.Conditionsforequilibriumd.Centreofmasse.Scalarsandvectors1.6Energy work powera.Energyb.Energyresourcesc....
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5. ultraviolet; security marking, detecting fake bank notes, sterilizing water 6. X-rays; medical scanning, security scanners 7. gamma rays; sterilising food and medical equipment, detection of cancer and its treatment 26. Describe the harmful effects on people of excessive exposure to electromagnet...
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