AUICS16MAR


 * 1) Does knowing how to use a scale on a map help you understand how to use scale to measure distances in the universe? How are they similar? How are they different?
 * 2) Vast distances in space are often measured in light-years. A light-year is the distance that light travels in one year, or about 6 trillion miles. Altair, a star in the constellation Aquila, is 16.6 light-years away, which means that the light we see now from that star left its surface 16 years and 219 days ago. Describe what was happening in the world when the light we are seeing from Altair first left that star. How far away is Altair in miles?
 * 3) Explain why it would be impossible for scientists to measure stellar distances that are accurate to within a few feet. Why is it not critical to attain such accuracy when dealing with astronomical distances?

Answers: 1. Yes it does, because you understand better where objects are in the universe, and the distances between them. They are similar because it would not take as long to get there, and you can measure the distences from one object to another. They are different because on Earth we measure in miles, and in space we measure in light years.

2. 16 years ago I was not born yet. My brother was born, he is 16 years old. My parents were married. It would take 99.6 trillion miles to get to Altair.

3. It would be impossible because they are so far away that you could not even try to do that. It is not critical to get these numbers perfectly accurate because they are just too far away to be perfectly precise with the distrances, you just have to be in the same range of numbers or at least pretty close.

1. How do you describe different gravity environments? 2. What are the characteristics of projectile motion? 3. How are elliptical orbitals maintained? 4. What were some significant contributions Isaac Newton made to the description of motion?
 * Key Questions: **

Answers: 1. I would describe different gravity environments as


 * View and Read **
 * Newton's 3 Laws of Motion
 * Gravity
 * NASA Solar System Overview