Question

Select the statement that correctly describes how light travels.

Light cannot travel in a vacuum because it travels slower when the light source is moving.
Light cannot travel in a vacuum because the light source is stationary.
The speed of light, traveling in a vacuum, will not change if the light source is moving.
Light traveling in a vacuum changes speeds when the light source moves.

Answer 1

The speed of light, traveling in a vacuum, will not change if the light source is moving.

The speed of light in vacuum does not depend on whether the light source is moving or not.