the big bang theory 3.0 / 5 based on 1 rating ? PhysicsAstronomyGCSEAQA Created by: Andy jacksonCreated on: 12-06-13 19:15 what is the doppler effect? the sound as an objects wavelength changes with movement. 1 of 7 what is red shift? as wavelength increases between the earth and other galaxies the spectrum shifts towards the red. 2 of 7 what does red shift tell us that objects are moving away. indicating that the universe is expanding from a point. 3 of 7 who discovered that the universe was expanding? Edwin Hubble 4 of 7 what is blue shift the decrease in wavelength, suggesting objects are moving towards us. 5 of 7 what is CMBR radiation radiation left shortly after the big bang 6 of 7 What does CMBR stand for? cosmic microwave background radiation. 7 of 7
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