Slide Preview for EdExcel Unit P3 - Applications of Physics

Powerpoint Description:

This slideshow covers the Applications of Physics (P3) triple science unit from the 2011 EdExcel course and covers: medical physics, radiation, intensity and how to calculate it, the law of reflection and ray diagrams for it, refraction of light, converging and diverging lenses, ray diagrams for lenses, the lens equation, how the eye works, using lenses to correct poor vision, using lasers in surgery, refractive index, critical angles, Snell's law, total internal reflection, ultrasound, charge in circuits, electron beams in cathode ray tubes, X-rays and their use in medicine, comparing X-rays to ultrasound, interpreting an ECG trace, heart rate and pacemakers, pulse oximetry and how it works, the structure of the atom, alpha, beta and positron decay, nuclear decay equations, N-Z curves, quarks, ionisation, gamma radiation, exposure to radiation, tracers, PET scanners, particle accelerators, circular motion using magnetic fields, how cyclotrons work, momentum, conservation of momentum, energy loss in collisions, elastic and inelastic collisions, energy-mass equivalence, particle theory, how particle theory explains pressure, how volume, pressure and temperature are related in gases, using gas pressure in medicine.