Question

Which statement about how light travels is true?

Light waves can travel in a vacuum and travel at a constant speed even if the light source is moving.

Light waves need a medium to travel, and they travel at the same speed even if the light source is moving.

Light waves can travel in a vacuum and will travel faster if the light source is moving forward.

Light waves need a medium to travel, and they travel faster if the light source is moving forward.

Answer 1

I chose B

Answer 2

A, electromagnetic radiation does not need a medium to move through.. think about sunlight, it comes from the sun and has to travel through space, which is a vacuum, no?

Answer 3

i got d now

Answer 4

so is it a cus i thought it was between d and b?

Answer 5

no you are right a is the answer

Answer 6

sorry i meant C, it's definitely not b or d because light doesn't need a medium to travel distances and it is influenced by the velocity of the object emitting that light

Answer 7

lol so c ugh thank you may i ask you for another question?

Answer 8

lol yeah, shoot

Answer 9

Which statement best describes scientific laws?

Scientific laws are scientists' opinions of why events occur.

Scientific laws are facts that describe observed reoccurring natural events.

Scientific laws explain why natural events occur.

Scientific laws were theories that have been proven to be true.

Answer 10

i think its D

Answer 11

i think it's B

Answer 12

"A law in science is a generalized rule to explain a body of observations in the form of a verbal or mathematical statement. Scientific laws imply a cause and effect between the observed elements and must always apply under the same conditions."

keyword: observations

Answer 13

SO B ?