AU-ICS16SPI

__**SCALE QUESTIONS:**__ 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?
 * Yes because the scale tells you how big it really is on Earth. They are because it's trying to show how big it really big it is on Earth on a scale model. They are different because the scale is showing how big it is on Earth but it's actually light years a way when earth to the moon is about a million miles away.

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?
 * When the light left the star, 16 years ago, I wasn't born yet. It is 63.5 trillion miles away. No, 16.6 trillion X 6 = 99.6 trillion 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?
 * It's impossible because it would take thousands of years for scientists but since it's so far away the scientists couldn't even possibly measure it.

__**KEY QUESTIONS:**__ 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?
 * There is a vertical acceleration caused by gravity
 * The vertical velocity of a projectile changes by 9.8 m/s each second
 * The horizontal motion of a projectile is independent of its vertical motion
 * He contributed the laws of motion.