Lesson: Hubble’s Law Physics

In this lesson, we will learn how to use the formula v = H₀d (Hubble’s law) to calculate the distance to faraway galaxies using the recession velocity.

Lesson Plan

Students will be able to

recall that light from objects moving away from us is redshifted,
recall that light from objects moving toward us is blueshifted,
recall that the further away a galaxy is, the greater its redshift is and the faster it is moving away from us,
use (Hubble’s law) in all permutations,
interpret graphs of radial velocity against distance or redshift against distance.