REDSHIFT CYCLE Vocabulary

This set of flashcards covers key vocabulary terms from the Redshift Cycle lecture, focusing on motion, wave changes, and directional relations.

Doppler Effect

The change in frequency or wavelength of a wave (sound, light, or water) caused by the relative motion between the wave source and the observer.

to shift

To change positions.

redshift

The stretching of light waves from an object moving away from an observer, shifting its color toward the red end of the spectrum.

blueshift

The decrease in wavelength (and increase in frequency) of light or other radiation, occurring when an object moves toward an observer.

to wobble

To be unstable.

stationary

To remain still and not moving.

relative to

In relation to; in connection with.

towards

To go in the direction of something.

away from

To move in the opposite direction of something.

to perceive

To become aware of or notice something.