An observatory compares the pattern of wavelengths from a distant galaxy with the same pattern measured in a laboratory. The wavelengths in the galaxy's pattern are longer.
Give the name for the observed increase in wavelength.
State what this observation indicates about the galaxy's motion.
State what the pattern of most distant galaxies moving away from us indicates about space.
79 exam-style questions on AQA GCSE Physics 8.2 Red-shift, covering 8.2 Red-shift. Each one has a worked solution and a mark scheme showing where the marks go.