Slide Preview for EdExcel Unit 5 - Physics from Creation to Collapse

Powerpoint Description:

Astrophysics: Gravity on different planets, gravitational fields, Newton's Law of Gravitation, the Universal Gravitational Constant, gravity and centripetal force, the Earth's gravitational field, gravitational field strength, equipotentials, comparison between electric and gravitational fields, luminosity, intensity, using intensity to find distance, cepheid variable stars, Wien's law, the life cycle of a star, nebulae, main sequence, red giants and supergiants, dwarf stars, supernovae, black holes, star classes, the Hertzsprung-Russell diagram, trigonometric parallax, nuclear fission and fusion, E=mc2 in stars, red shift, Hubble's Law, the end of the universe. Oscillations: Cicular motion, centripetal acceleration, radians, simple harmonic motion, displacement-time, velocity-time and acceleration-time SHM graphs, maximum values, example questions, SHM applied to a pendulum and a spring, energy changes during an oscillation, damping, resonance. Nuclear Decay: Geiger counters, background radiation, ionisation, alpha, beta and gamma radiation, changes in mass and proton number, blocking radiation, radioactive decay, the decay constant, half life, decay curves, the unified atomic mass unit, binding energy, energy-mass equivalence, binding energy per nucleon, fusion in stars, nuclear fission, nuclear power stations. Thermal Physics: Pressure and volume in gases, Boyle's Law, pressure and temperature in gases, the Pressure Law, absolute temperature, the Kelvin scale, volume and temperature in gases, the ideal gas equation, internal energy, molecular speeds, RMS speed, specific heat capacity.