AQA A Level Maths: Pure復習筆記4.4.2 Geometric Series
Geometric Series How do I find the sum of a geometric series? A?geometric series?is the sum of the terms of a?geometric sequence The following formulae will let you find the sum of the first...
IB DP Physics: HL復習筆記8.2.4 The Greenhouse Effect
Greenhouse Gases When radiation from the Sun hits the Earth, it is radiated back from the Earth's surface as long-wave radiation A greenhouse gas is a gas that absorbs this re-radiated radiation, t...
IB DP Physics: HL復習筆記8.2.3 The Solar Constant, Albedo & Emissivity
The Solar Constant Since life on Earth is entirely dependant on the Sun’s energy, it is useful to quantify how much of its energy reaches the top of the atmosphere This is known as the solar consta...
IB DP Physics: HL復習筆記8.2.2 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...
美國名校是如何進行劃分的？常春藤、公立常春藤、新常春藤區別是什么？
美國的名校，多少都有title傍身，最早我們熟悉的就是常春藤聯盟（IVY League），雖說是以一個體育聯盟的名義起家，但是依舊代表了美國私立教育的最高水準，很多人都以爬藤為目標。隨著教育水平的提高、各個學校綜...
IB DP Physics: HL復習筆記8.2.1 Conduction, Convection & Thermal Radiation
Conduction Thermal energy transfers from hotter areas to cooler areas by the processes of: Conduction Convection Radiation Objects will?always?lose heat until they are in thermal equilibrium (same ...
AQA A Level Maths: Pure復習筆記4.4.1 Geometric Sequences
Geometric Sequences What do I need to know about geometric sequences? In a?geometric sequence,?there is a?common ratio?between consecutive terms in the sequence You need to know the?nth?term...
IB DP Physics: HL復習筆記8.1.6 Safety Issues in Nuclear Power
Safety Issues in Nuclear Power Safety Measures for Workers Several measures are in place to reduce the worker’s exposure to radiation The fuel rods are?handled remotely?ie. by machines The nuclear ...
IB DP Physics: HL復習筆記8.1.5 Energy Generation
Energy Generation You need to know about the main ways of generating electricity: The equipment involved The advantages and disadvantages Calculate power obtained for different setups These revisio...
IB DP Physics: HL復習筆記8.1.4 Energy Resources
Energy Resources Energy resources are large stores of energy that can be transferred from one form into electrical energy that can be used by society Generating energy reliably requires the use of ...
IB DP Physics: HL復習筆記8.1.3 Primary & Secondary Energy Sources
Primary Energy Sources Primary energy sources are found in nature and have some stored energy capacity To be a primary energy source, there must be: No processing or refining Stored energy must occ...
IB DP Physics: HL復習筆記8.1.2 Sankey Diagrams
Sankey Diagrams Diagrams are used to represent energy transfers These are sometimes called?Sankey diagrams The arrow in a Sankey diagram represents the transfer of energy: The end of the arrow poin...
