Lesson Plan: P2.6.04

Hamble Lesson Observation Plan
Learning About
What evidence is there to support the Big Bang Theory?
Keywords:
  • Receding: Moving further away from its original position. (1)
  • Expanding Universe: Idea that Universe itself is increasing in size. (1)
  • Light: electromagnetic waves that transfers energy, even through a vacuum. (1)
  • Galaxies: A galaxy can contain many millions of stars, held together by the force of gravity. (1)
  • Wavelength: The distance between two successive crests or troughs of a wave. (1)
  • Red-shift: When an object moves away from an observer, the light has its wavelength stretched, 'shifting' it to the red end of the visible spectrum. (1)
  • Big-Bang Theory: Theory that states the universe as we know it started with a small singularity, that inflated over the next 13.8 billion years to the cosmos that we know today. (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
(Physics only) Students should be able to explain qualitatively the red-shift of light from galaxies that are receding (Physics only) What happens to the red-shift of receding galaxies and why?
(Physics only) There is an observed increase in the wavelength of light from most distant galaxies. This effect is called red-shift. (Physics only) What is red-shift?
(Physics only) The further away the galaxies, the faster they are moving and the bigger the observed increase in wavelength. (Physics only) What makes red-shift increase?
(Physics only) The observed red-shift provides evidence that space itself (the universe) is expanding and supports the Big Bang theory. (Physics only) How does red-shift support the Big Bang theory?
(Physics only) The Big Bang theory suggests that the universe began from a very small region that was extremely hot and dense. (Physics only) What does the Big Bang theory suggest?
(Physics only) Since 1998 onwards, observations of supernovae suggest that distant galaxies are receding ever faster. (Physics only) What have scientists observed of distant galaxies since 1998?
(Physics only) Students should be able to explain that the change of each galaxy's speed with distance is evidence of an expanding universe (Physics only) What evidence is there of an expanding universe?
(Physics only) Students should be able to explain how red-shift provides evidence for the Big Bang model (Physics only) How does Red-shift provide evidence for the Big Bang model?
Links To the Big Ideas
ForcesParticlesEnergyCells