Question

open model 3 (title: doppler_effect_and_redshift_ms) and make observations about change in frequency in each of the situations in the table below.
also predict the change of color perceived by the observed in a particular situation. for example, the wave frequency of visible light graph below, if the frequency of waves detected by the observer is higher, the color should move towards the blue; if it is lower, it should move towards the red.
wave frequency of visible light
shorter wavelength
higher frequency
longer wavelength
lower frequency

situation	is there a change in frequency of the light waves perceived by the observer on earth? (higher, lower, or none?)	change of color perceived by the observer on e (shift toward red, blue or
the galaxy is moving toward earth.
the galaxy is moving away from earth.

original materials created by new visions for public schools (cc by-nc-sa). modifications made by bscs science learning to integrate features of openscied instructional routines and bscs 5e strategy.
earth and space science unit 8 | origin of the un se student materials | v6 10-2024

Explanation:

Answer:

none; The galaxy is not moving, so there is no Doppler effect. No color shift;
higher; Blue - shift (since the source is moving towards the observer, frequency increases);
lower; Red - shift (since the source is moving away from the observer, frequency decreases)