Conceptual Physical Science Explorations
Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
bartleby

Videos

Textbook Question
Book Icon
Chapter 33, Problem 4RQ

Is the light-year a measurement of time or distance?

Expert Solution & Answer
Check Mark
To determine

Whether the light-year is a measurement of time or distance.

Answer to Problem 4RQ

The light-year is a measurement of distance.

Explanation of Solution

The light-year is a distance that light travels in one year. One light-year is approximately equal to 10 trillion.

Light years are used to measure vast distances between Earth and stars. For example, Proxima Centauri, the closest star from Sun is 4.2 light-years away. The diameter of the milky way galaxy is 100,000 light-years. Andromeda galaxy is 2.3 million light-years away. Light does not reach to us on the spot as it takes light years to travel.

Conclusion:

Therefore, the light-year is a measurement of distance.

Chapter 33 Solutions

Conceptual Physical Science Explorations

Knowledge Booster
Background pattern image
Physics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
College Physics
Physics
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Cengage Learning
Text book image
University Physics (14th Edition)
Physics
ISBN:9780133969290
Author:Hugh D. Young, Roger A. Freedman
Publisher:PEARSON
Text book image
Introduction To Quantum Mechanics
Physics
ISBN:9781107189638
Author:Griffiths, David J., Schroeter, Darrell F.
Publisher:Cambridge University Press
Text book image
Physics for Scientists and Engineers
Physics
ISBN:9781337553278
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Text book image
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:9780321820464
Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:Addison-Wesley
Text book image
College Physics: A Strategic Approach (4th Editio...
Physics
ISBN:9780134609034
Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:PEARSON
Time Dilation - Einstein's Theory Of Relativity Explained!; Author: Science ABC;https://www.youtube.com/watch?v=yuD34tEpRFw;License: Standard YouTube License, CC-BY