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A light-year is the distance traveled by light in one year. Note that light moves at a speed of about 300,000 km/second.A light-year is defined to have EXACTLY 9,460,730,472,580,800 meters (or approximately 9.5 quadrillion meters).
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What is a light year and why do scientist use it?
A light year is a measure of how far light can travel in one year. It is a phenomenal distance, and is used to describe how far away stars are from us.
How do you convert 3 earth years into light years?
you cant light years refer to the distance light can travel in 1 year 1 Light Year = 5878625373183.61 Miles
Who is the scientist use the light year to measure the speed of light?
It doesn't work that way. The light-year is not used to measure the speed of light. It works the other way round: First, the speed of light is determined through other methods, then the distance called a light-year is calculated based on that measurements.
Why might a scientist use a light meter?
Scientist use a light meter to show how light in shining on a surface !
What is refer by light year?
A light year is the distance which light will travel in a vacuum. Light travels at 299,792,458 m/s in a vacuum, one year is 31557600s (on average taking into account leap years) so 1 light year is 9.46073x10^15m or 9 460 730 473 000 km
How does a spectroscope extend a scientist's ability to observe light?
It allows a scientist to measure the wavelength of light.
What do astronomers use to measure distance to stars?
If you refer to the units, both the light-year and the parsec are often used. A light-year is the distance light travels in a year; about 9.5 x 1012 kilometers (9.5 million million kilometers). A parsec is about 3.26 light-years.
What does the light microscope allow the scientist to view?
The light microscope allow the scientist to view the bloods in our body.
Scientist recently detected a new born star 100 light years away light from this star takes how many years to reach the earth?
Well the answer is in the question. A light year is the distance it takes light to travel in one year. If something is a 100 light years away, then it will take light ..........
What do scientist refer above ground freshwater environments as?
streams
What is use by scientist to measure the distance light travel in one year?
Scientists don't measure the distance light travels in one year. They calculate it by measuring the speed of light. The speed is 300,000,000 meters/sec. and can be measured in the laboratory with a rotating mirror apparatus. To get the distance traveled by light in one year you multiply the speed (above) by the number of seconds in a year. The answer will come out in meters and is also called one light year.
A scientist wants to know whether a particular cell is round or rectangular. How should the scientist observe the overall shape of the cell?
The scientist should use a light microscope.
