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...
Edexcel IGCSE Physics 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 復(fù)習(xí)筆記 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 ...
