盘点Alevel课程A*高分及最难的科目！
近些年，越来越多的家长意识到国际教育的重要性，A-level课程也成为众多家长和学生的首选。今天就为大家盘点一下，Alevel课程A*高分及最难的科目，为进入世界顶级学府做准备。 Alevel的A*标准 Alevel的每一科考试...
Edexcel A Level Physics:复习笔记10.4 The Hertzsprung-Russell Diagram
The Hertzsprung - Russell Diagram Danish astronomer Ejnar Hertzsprung, and American astronomer Henry Noris Russell, independently plotted the luminosity of different stars against their temperature...
Edexcel A Level Physics:复习笔记10.3 Standard Candles
Determining distance using standard candles Standard Candles A standard candle is defined as: An astronomical object which has a known luminosity due to a characteristic quality possessed by that c...
Edexcel A Level Physics:复习笔记10.2 Parallax
Determining Distance using Parallax The principle of parallax is based on how the position of an object appears to change as the position of the observer changes For example, when observing the sca...
Edexcel A Level Physics:复习笔记10.1 Inverse Square Law of Flux
Inverse Square Law of Flux The moment the light leaves the surface of the star, it begins to spread out uniformly through a spherical shell Light sources which are further away appear fainter becau...
Edexcel A Level Physics:复习笔记9.12 Wien’s Law
Wien's Law Wien’s displacement law relates the observed wavelength of light from an object to its surface temperature, it states: The black body radiation curve for different temperatures peaks at ...
Edexcel A Level Physics:复习笔记9.11 Stefan-Boltzmann Law
Stefan-Boltzmann Law An objects luminosity depends on two factors: Its surface temperature Its surface area The relationship between these is known as the Stefan-Boltzmann Law, which states:...
Edexcel A Level Physics:复习笔记9.10 Black Body Radiation
Black Body Radiation Black body radiation is the name given to the thermal radiation emitted by all bodies (objects) All objects, no matter what temperature, emit black body radiation in the form o...
Edexcel A Level Physics:复习笔记9.9 Average Molecular Kinetic Energy
Average Molecular Kinetic Energy An important property of molecules in a gas is their average kinetic energy This can be deduced from the ideal gas equations relating pressure, volume, temperature ...
