Question

analysis: 1. the rubber band represents space, and the stars represent stars or galaxies (things made up of matter). explain what happens to matter as space expands. a. what happens to the total number of waves as space expands? ___________ b. as space expands, what happens to the wavelength? ___________

Explanation:

Step1: Consider wave - number conservation

In the absence of creation or destruction of waves, the total number of waves remains constant as space expands.
The total number of waves does not change.

Step2: Understand the effect of space expansion on wavelength

As space expands, the distance between successive wave - crests (wavelength) increases. This is similar to how the distance between points on a stretching rubber band increases.
The wavelength increases.

Answer:

a. The total number of waves remains the same.
b. The wavelength increases.