Edexcel IGCSE Physics 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.2.4 Contamination & Irradiation Contamination & Irradiation Contamination Contamination is defined as: The unwanted presence of materials cont...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 7.2.3 Uses of Radioactivity Uses of Radioactivity Radiation is used in a number of different ways: Medical procedures including diagnosis and treatment of canc...
