1. As mentioned before, our asteroid is in the shape of a sphere and has a mass
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Question
1. As mentioned before, our asteroid is in the shape of a sphere and has a mass of 1000 kilograms. Determine the density (in grams per cubic centimeter) of this asteroid if its diameter is known to be 1.0 meters. Useful information: 1 kg = 1000 g, 1 m = 100 cm, volume of sphere = 4/3 p r3. Remember that the radius of a sphere is equal to half its diameter! Show all of your work. (20 points)2. How does your calculated density (in grams per cubic centimeter) compare to the density of water? Would you expect this asteroid to float or sink in water based on your calculations? (15 points)
3. One side of our asteroid is constantly illuminated by the Sun while the other side remains in the dark. Do you expect there to be a temperature difference between the light and dark sides? Explain why or why not. If the two sides are at different temperatures, how might heat transfer from one side to the other? Note that our asteroid does not have enough gravity to hold an atmosphere. (15 points)
4. Occasionally an asteroid will break into fragments due to a collision. These fragments can leave the asteroid belt and some even make their way to Earth. Upon entering the Earth's atmosphere, a fragment is heated to high temperature by frictional forces. What would happen to any water-ice contained within a fragment? Is this type of change considered a chemical change or a physical change? Is this an endothermic or exothermic change? Explain. (10 points)
5. Asteroids are mainly composed of metals like iron and nonmetals like carbon. Briefly explain the differences between metals and nonmetals based on your knowledge of the periodic table. (10 points)
6. If the asteroid fragment contains carbon, it may burn when entering the Earth's atmosphere. What is the most likely compound to result from this process? Which type of chemical bond would result from this process? Of the two broad classes of chemical reactions mentioned in this course, which type would this be? Be sure to fully explain all of your answers. (20 points)
Explanation / Answer
6)The compound is Carbon Dioxide The bond between the oxygen and carbon atoms would be a covalent bond. 5)Elements may be classified as either metals or nonmetals, based on their properties. Here's a look at the differences between the metals and nonmetals. ... On the periodic table, metals are separated from nonmetals by a zig-zag line. 4)Evolution refers to the genetic changes over time in a population of organisms.The universe has no genetic code, does not reproduce, and has nothing to do with evolution. 3)The side facing the SUN will absorb Infra-red radiation from the sun and thus heat up. If the asteroid is made of heat conductive material, then the heat will transfer through the asteroid to the other side. 2)The density of an object is the ratio of its mass to its volume. If you can measure the mass and the volume of an object, you can determine its density. Since each substance has a specific density that remains unchanged, you can use this density to identify an unknown object. Even if you know nothing about your object before you begin this experiment, you should be able to find all of the parameters easily and identify the object in question. hope you find your answers
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