Edexcel IGCSE Physics 复习笔记 7.3.1 Nuclear Energy
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...
IB DP Maths: AI HL复习笔记5.7.1 Coupled Differential Equations
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
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...
Edexcel IGCSE Physics 复习笔记 7.2.4 Contamination & Irradiation
Edexcel IGCSE Physics 复习笔记 7.2.4 Contamination & Irradiation Contamination & Irradiation Contamination Contamination is defined as: The unwanted presence of materials cont...
Edexcel IGCSE Physics 复习笔记 7.2.3 Uses of Radioactivity
Edexcel IGCSE Physics 复习笔记 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...
Edexcel IGCSE Physics 复习笔记 7.2.2 Half-Life
Edexcel IGCSE Physics 复习笔记 7.2.2 Half-Life Half-Life It is impossible to know when a particular unstable nucleus will decay But the rate at which the activity of a sample decreases can b...
Edexcel IGCSE Physics 复习笔记 7.2.1 Activity & Decay
Edexcel IGCSE Physics 复习笔记 7.2.1 Activity & Decay Activity and Decay Objects containing radioactive nuclei are called sources of radiation Sources of radiation decay at different rat...
Edexcel IGCSE Physics 复习笔记 7.1.6 Detecting Radiation
Edexcel IGCSE Physics 复习笔记 7.1.6 Detecting Radiation Detecting Radiation It is important to regulate the exposure of humans to radiation The amount of radiation received by a person is c...
Edexcel IGCSE Physics 复习笔记 7.1.5 Decay Equations
Edexcel IGCSE Physics 复习笔记 7.1.5 Decay Equations Decay Equations Radioactive decay events can be shown using a decay equation A decay equation is similar to a chemical reaction equation ...
Edexcel IGCSE Physics 复习笔记 7.1.4 Core Practical: Investigating Radiation
Edexcel IGCSE Physics 复习笔记 7.1.4 Core Practical: Investigating Radiation Core Practical 13: Investigating Radiation Aim of the Experiment The aim of this experiment is to investigate th...
Edexcel IGCSE Physics 复习笔记 7.1.3 Types of Radiation
Edexcel IGCSE Physics 复习笔记 7.1.3 Types of Radiation Types of Radiation Unstable Nuclei and Radiation Some atomic nuclei are unstable This is because of an imbalance in the forces within ...
Edexcel IGCSE Physics 复习笔记 7.1.1 Atomic Structure
Edexcel IGCSE Physics 复习笔记 7.1.1 Atomic Structure Atomic Structure Atoms are the building blocks of all matter They are incredibly small, with a radius of only 1 × 10-10 m This me...
