Question

can someone help me with my science homework :(


Select the statement that correctly describes how light travels. (2 points)
Light travels at different speeds when the light source is moving and cannot travel in a vacuum.
Light cannot travel through a vacuum and travels slower when the light source is moving away.
Light can travel in a vacuum, and the speed at which it travels changes if the source is moving.
Light travels at a constant speed through a vacuum, even if the light source is moving.

Answer 1

I think its d

Answer 2

you sure?

Answer 3

let me double check

Answer 4

yeah i was correct :)

Answer 5

here's why

A is wrong because light has a constant speed.

B is wrong because light can travel in a vacuum.

C is wrong for the same reason as A.

Answer 6

yes light can travel through a vacuum

and light will always travel at a constant in a vacuum even if the source is moving

Answer 7

Thanks both of you :D

Answer 8

yeah!

Answer 9

need anymore help?