WebRed-shift is observed when the spectral lines from the distant galaxy move closer to the red end of the spectrum This is because light waves are stretched by the expansion of the universe so the wavelength increases (or frequency decreases) This indicates that the galaxies are moving away from us WebOur IGCSE insiders have compressed their years of teacher and examiner knowledge into concise (downloadable) revision notes, step-by-step model answers, focused past papers, and straightforward mark schemes. They have even revealed tricks examiners use …

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WebThis is called a red-shift because the spectrum of light is shifted towards the red part of the spectrum. The light waves are squashed together if the star or galaxy is moving towards Earth. The wavelength of the waves is reduced. This is called a blue-shift because the spectrum of light is shifted towards the blue part of the spectrum. WebRed Shift – big bang, wavelength, frequency, cosmic microwave background radiation, galaxies, Doppler effect Unit 2 GCSE Physics The Effects of Forces – resultant force and motion Forces & Elasticity – Hooke’s law, spring constant, elastic potential energy Forces & Motion – F=ma, distance-time graphs, velocity-time graphs, velocity, acceleration mo state fire marshal\\u0027s office

Red-shift, Big Bang and universal expansion - BBC Bitesize

WebWhen an object that emits waves begins to move, the movement can cause the stretching or compressing of the waves. This is called the Doppler shift. Similarly, light wavelengths … WebRedshift The same shifts in frequency and wavelength are also observed for light coming from stars in distant galaxies. By comparing the light from distant stars with the spectrum … WebAll the past papers, mark schemes and resources you could ever need for entrance exams, KS3, GCSE, A-level and uni admissions! mingo creek pennsylvania