Question

How are light-years used to measure distances and sizes in the universe?

O
A They provide information about time as well as distance and size.
B. They provide more accuracy than using other units of distance and size.
O
C. They provide smaller numbers to work with when measuring distances and sizes in the universe
D. They provide easy conversion into scientific notation, unlike other units of distance and size.

Answer 1

.

Step-by-step explanation:

A light-year is how astronomers measure distance in space. It's defined by how far a beam of light travels in one year – a distance of six trillion miles. Think of it as the bigger, badder cousin of the inch, the mile, the kilometer, and the furlong.

Answer 2

light-years were used to measure distances and sizes in the universe because B. They provide more accuracy than using other units of distance and size.

What is light-year ?

The distance that light travels in a vacuum of space in a year is known as a light-year, and it is roughly 9.46 trillion kilometers or 5.88 trillion miles. Given the size of the cosmos and the speed of light, which is around 300,000 kilometers per second, it is a significant unit of distance.

Since everything is so far apart, terrestrial measurements like miles, kilometers, etc., would have enormous numbers associated to them. Instead, light years are employed to measure distance in space. The distance that light will travel through space in a year is 5.8 trillion miles. 4.22 light years separate our solar system from the nearest star.