AUICS16RUE


 * 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) Knowing how to scale use a scale model is helpful because it takes huge numbers and brings them down to numbers we can understand. They're similar because they represent the same thing but different because one is gigantic and real and one is proportional so we can understand.
 * 3) 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?
 * 4) The light that left Altair 16 yrs. and 216 days ago means that the light traveled at light speed but since it is so far, it took 16 years and 219 days and we are literally looking into the past. It is 99,600,000,000,000 miles away.
 * 5) 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?
 * 6) It would be impossible for these measurements to be absolutely accurate because we've never been there in person or seen it. It's not critical to attain such accuracy because many of the numbers are averaged or hypothesized.

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? He said that objects tend to continue to be in the motion they are in. \ Heavier objects require more force to move. For every force there is a reaction of equal size in opposite direction.