My name is Evan Tillotson and I'm currently studying Physics at the University of Manchester. This course is the most qualified in the country with the highest prerequisites needed. Having spent 6 years excelling in over 60 exams (so far), I feel confident saying I understand the exam system.
However, whilst acing exams is important, I love to explain the topics and concepts which confuse and befuddle. Anyone can understand quantum mechanics; it just needs to be explained in a comprehensible way. I find myself a clear, charismatic person who hopes to hear from you soon!
|Maths||A Level||£20 /hr|
|Physics||A Level||£20 /hr|
Half-life is a term commonly used in radioactivity. It defines the time taken for a radioactive source to halve its activity. A radioactive source will emit radiation (energy) through the emission of particles or photons. How many of these particles are being released every second (or any arbitrary unit of time) determines a substance's activity. This can be seen mathematically through analysing the radioactive decay equations listed in the AQA formula list here: http://filestore.aqa.org.uk/subjects/AQA-PHYA4-5-INS-JUN12.PDF. Furthermore, the maths used to derive the equation for half-life, can be explained through these equations; I would be happy to show you if you wish. In conclusion, half life is how long it takes for a radioactive substance to become half as radioactive as it initially was.see more