distance can be represented using Compare brightness of two absolute magnitude equally bright LED lamps at 8.12P draw the main components varying distances. of the Hertzprung-Russell diagram (HR diagram). Reasoning Critical thinking 58 Section 8: Students will be assessed on their Activities: Executive function Problem solving ability to: & Astrophysics Cambridge Outreach Hubble’s Discuss standard candles Adaptability Analysis Law Activity 59 d) Cosmology and the Doppler effect and Reasoning 8.13P describe the past evolution Interpretation how that gives independent of the universe and the main Decision making measurements of a galaxy’s arguments in favour of the Big distance and velocity. Bang clips: Plot graphs of supplied The Beginning of the 8.14P describe evidence that galactic velocity-distance Universe for Beginners supports the Big Bang theory data and discuss and cosmic microwave implications of directly background (CMB) radiation proportional relationship. Complete examples 8.15P describe that if a wave including calculations. source is moving relative to an Compare Doppler shifts observer there will be a change in from spectra of different the observed frequency and galaxies and of the right wavelength hand, left hand and centre of a galaxy. 8.16P use the equation relating change in wavelength, wavelength, velocity of a galaxy Class practical: and the speed of light: Use strings of buttons/paper clips connected together with elastic bands or springs. When bands are
distance can be represented using absolute magnitude 8.12P draw the main components of the Hertzprung-Russell diagram (HR diagram). Compare brightness of two equally bright LED lamps at varying distances. 58 & 59 Section 8: Astrophysics d) Cosmology Students will be assessed on their ability to: 8.13P describe the past evolution of the universe and the main arguments in favour of the Big Bang 8.14P describe evidence that supports the Big Bang theory and cosmic microwave background (CMB) radiation 8.15P describe that if a wave source is moving relative to an observer there will be a change in the observed frequency and wavelength 8.16P use the equation relating change in wavelength, wavelength, velocity of a galaxy and the speed of light: Activities: Discuss standard candles and the Doppler effect and how that gives independent measurements of a galaxy’s distance and velocity. Plot graphs of supplied galactic velocity-distance data and discuss implications of directly proportional relationship. Complete examples including calculations. Compare Doppler shifts from spectra of different galaxies and of the right hand, left hand and centre of a galaxy. Class practical: Use strings of buttons/paper clips connected together with elastic bands or springs. When bands are Cambridge Outreach Hubble’s Law Activity clips: The Beginning of the Universe for Beginners Reasoning Executive function Adaptability Critical thinking Problem solving Analysis Reasoning Interpretation Decision making
IGCSE-physics-scheme-of-work.docx