Hubble's law states that galaxies are receding from us at a speed that is proportional to their ________.
A)distance
B)orientation
C)volume
D)mass

Question

Quizplus · Accepted Answer

Hubble's law states that the farther away a galaxy is from us, the faster it appears to be moving away from us. The speed of recession is proportional to the distance of the galaxy from us. Therefore, the correct choice is distance (A).

Hubble's Law States That Galaxies Are Receding from Us at a Speed