Edexcel IGCSE Chemistry 復習筆記 1.2 2 Pure Substance vs Mixture Pure Substance vs Mixture In everyday language we use the word pure to describe when something is?natural?or?clean?and to whi...
Edexcel IGCSE Chemistry 復習筆記 1.2.1 Element, Compound or Mixture Classify an Element, Compound or Mixture You need to know the following definitions Classify an Element, Compound o...
Compound Angle Formulae What are the compound angle formulae? There are six?compound angle formulae?(also known as?addition formulae), two each for?sin,?cos?and?tan: For?sin?the +/- sign on the lef...
Edexcel IGCSE Chemistry 復習筆記 1.1.5 Practical: Investigate the Solubility of a Solid in Water at a Specific Temperature Practical: Investigate the Solubility of a Solid in Water at a Specific Te...
Edexcel IGCSE Chemistry 復習筆記 1.1.4 Solubility Solubility Solubility is?a measurement of how much of a substance will dissolve in a given volume of a liquid The liquid is called the solve...
Edexcel IGCSE Chemistry 復習筆記 1.1.3 Solutions Solutions Terminology You need to know all the following terms used when describing solutions: Terminology About Solutions Table 轉載...
Energy of an Orbiting Satellite An orbiting satellite follows a circular path around a planet Just like an object moving in circular motion, it has both kinetic energy (KE)?and?gravitational...
Circular Orbits in Gravitational Fields Since most planets and satellites have a near circular orbit, the gravitational force?FG?between the Sun and another planet provides the?centripetal f...
Edexcel IGCSE Biology 復習筆記 1.1.2 Diffusion & Dilution Diffusion & Dilution Diffusion and dilution experiments support a theory that all matter (solids, liquids and gases) is made...
