Edexcel IGCSE Chemistry 復(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(fù)習(xí)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(zhuǎn)載...
Simple Identities What is a trigonometric identity? They are used to help simplify trigonometric equations before solving them Sometimes you may see identities written with the symbol?≡ This means ...
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(fù)習(xí)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...
