What is a light-year in easy words?

A light-year is a unit of distance. It is the distance that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More p recisely, one light-year is equal to 9,500,000,000,000 kilometers.

What is light-year give example?

A light-year (ly) is the distance that light can travel in one year. In one year, light travels about 5,880,000,000,000 miles or 9,460,000,000,000 kilometers. So, this distance is 1 light-year. For example, the nearest star to us is about 4.3 light-years away.

How my years is a light-year?

One light year is equal to the distance that light travels in one year (it is about ten trillion kilometers, or six trillion miles). One light years is equal to approx 6.5×10^5 earht s years.

What is a light-year Simple Wikipedia?

From Simple English Wikipedia, the free encyclopedia. A light year (symbol: ly) is the distance that light travels in empty space in one year. Since the speed of light is about 300,000 km per second (about 186,000 miles per second), then a light year is about 10 trillion kilometers (about 6 trillion miles).

What is meant by light-year class 11 physics?

Light year is a unit of distance not time. A light year is the distance traveled by light in 365.25 days. As defined by the IAU, light year is a product of Julian year and speed of light c. It has been used since 1984.

How does a light-year work?

A light-year is the distance light travels in one Earth year. One light-year is about 6 trillion miles (9 trillion km). That is a 6 with 12 zeros behind it!

What is light-year answer?

A light-year is the distance a beam of light travels in a single Earth year, or 6 trillion miles (9.7 trillion kilometers).

What is a light-year for kids?

How do you explain a light year?

A light year is a way of measuring distance. That doesn’t make much sense because “light year” contains the word “year,” which is normally a unit of time. Even so, light years measure distance. You are used to measuring distances in either inches/feet/miles or centimeters/meters/kilometers, depending on where you live.

How many light years are in a year?

Light year is a unit of measurement for measuring the distance covered by light in one year which is 9.4607*10¹² km, which is nearly 6 million million miles. There are no number of years related with one light year as year is considered as a time period.

How many minutes in a light year?

1 Light Minute: 1 Light minute is 1.798 754 748 x 1010 meters (SI unit). Distance light travels in a vacuum in one minute. 1 Light Year: 1 Light year is 9.460 730 472 5808 x 1015 meters (SI unit). Distance light can travel in a vacuum over a period of 365.25 days.

How long does it take to travel a light year?

Saying we were a space shuttle that travelled five miles per second, given that the speed of light travels at 186,282 miles per second, it would take about 37,200 human years to travel one light year.