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Edexcel IGCSE Physics: Double Science 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 amou...
Edexcel IGCSE Physics: Double Science 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 a...
Edexcel IGCSE Physics: Double Science 复习笔记：7.2.4 Contamination & Irradiation Contamination & Irradiation Contamination Contamination is defined as: The unwanted presence ...
Edexcel IGCSE Physics: Double Science 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 ...
Edexcel IGCSE Physics: Double Science 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 sampl...
Edexcel IGCSE Physics: Double Science 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...
Edexcel IGCSE Physics: Double Science 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...
Edexcel IGCSE Physics: Double Science 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 che...
Edexcel IGCSE Physics: Double Science 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 ...
