Edexcel IGCSE Physics 复习笔记 8.1.2 Gravitational Field Strength Gravitational Field Strength The strength of gravity on different planets after an object's weight on that planet Weight is ...
Edexcel IGCSE Physics 复习笔记 8.1.1 Objects in Space Planets, Stars & Galaxies The Universe is is a large collection of billions of galaxies It is also the name given to the entirety o...
Edexcel IGCSE Physics 复习笔记 7.3.5 The Conditions for Fusion Fusion in Stars Stars are huge balls of (mostly) hydrogen gas In the centre of star, hydrogen atoms undergo nuclear fusion to f...
Edexcel IGCSE Physics 复习笔记 7.3.4 Nuclear Fusion Nuclear Fusion Small nuclei can react to release energy in a process called nuclear fusion Nuclear fusion is defined as: When two l...
Edexcel IGCSE Physics 复习笔记 7.3.3 Nuclear Reactors Chain Reactions Only one extra neutron is required to induce a uranium-235 nucleus to split by fission During the fission, it produces t...
Edexcel IGCSE Physics 复习笔记 7.3.2 Nuclear Fission Nuclear Fission Nuclear fission is defined as: The splitting of a large, unstable nucleus into two smaller nuclei Isotopes ...
Edexcel IGCSE Physics 复习笔记 7.3.1 Nuclear Energy Nuclear Energy The nucleus of the atom contains a huge amount of energy – roughly one million times greater than the amount of energy invo...
Solving Coupled Differential Equations How do I write a system of coupled differential equations in matrix form? How do I find the exact solution for a system of coupled differential equations? Wor...
Edexcel IGCSE Physics 复习笔记 7.2.5 Dangers of Radiation Dangers of Radiation Ionising radiation can damage human cells and tissues If the atoms that make up a DNA strand are ionised then t...
