Author: assignment-help

1. The organizational structure above the level of the solar system is the galaxy. Galaxies exist in several forms. Describe the structure of the five common galaxy types and the factors that contributed to their formation. View this video on Galaxy Classifications.

2. Galaxies do not represent the highest level of organizational structure. Galaxies themselves can be part of even larger entities. Discuss these larger structures, giving examples. You might also address how the currently not fully understood concepts of dark matter and dark energy affect these groupings. View this video on Galaxy Clusters.

3. Hubble’s Law is profound in that it provides a tool for measuring distances out to the very edge of the known universe and applied in reverse suggests the basic formation theory for the universe itself- the Big Bang. Explain the concept of Hubble’s Law and how it allows the determination of such great distances as well as how it supports the concept of the Big Bang. View this video on Hubble’s Law.

4. The most profound unanswered question that mankind can ask is “Are we alone in the universe”? Is our little blue planet the only place where conditions have been right to support the formation of the many levels of life we see here on Earth? Describe the steps that have been taken to discover this extra-terrestrial life including why the current lack of success to date is to be expected and does not support the conclusion that there is no other life out there. View this video on the search for Extraterrestrials.

Contrast the meaning of the terms luminosity, absolute magnitude, and apparent magnitude. Discuss why they are important in astronomy and how they are used. View Understanding Star Magnitude.

Describe the structure of the Hertzsprung-Russell diagram including how it is developed, the significant regions, and the key value it provides astronomers as a tool. View The H-R Diagram and The Life Cycle of Stars.

Review the evolutionary track of a typical 1 solar mass star on the H-R diagram from it proto-star stage until the end of its status as a star. Address what occurs to cause its transition from one stage to the next. View Supernova and Supergiant Star Life Cycles and Star Life Cycles.

Cepheid Variable Stars are an extremely useful as tools for astronomers. Describe the characteristics of a Cepheid variable star, the cause of its behavior, and for what and how it is used by astronomers. View Cepheid Variable Stars and Distance Measurements and More on Cepheid Variables.

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The last stage in the evolutionary track of a star depends upon the star’s mass. Discuss the various possible ending stage of stars and relate the cause of the outcome of each to their mass. View this video on the Life Cycles of Stars.

Stars can exist as, or evolve into, entities that sometimes seem rather exotic like neutron stars and pulsars. Describe the characteristics of each of these objects including their basic properties, how they form, and how they evolve. View this video on the formation of Neutron Stars.

One of the more bizarre objects in the universe is the Black Hole. Describe in depth their fundamental properties, how they come to be, and how we know they exist. View this video on Black Holes.

The overall structure of our own Milky Way galaxy is hard to determine because we are inside of it with major portions being obscured by interstellar gases, dust, and other debris. Explain the methods used to map our galaxy both now and in the past, along with their outcomes. Present our current understanding of the structure of our galaxy and where we are located in it. View this video on the structure of the Milky Way.

Discuss and critically analyze the legal authorities (e.g. Anti-Terrorism Act, Bill C-59) and debate the effectiveness of these authorities, while ensuring the Charter of Rights is protected. Where do you see (if at all) the separation between social/community interventions and legal/military interventions? Is Canada doing enough to combat terrorism, and protect its citizens?

Links to videos:
https://www.youtube.com/watch?v=YjXYRwhpSzE
http://www.cbc.ca/news/canada/terrorism-survey-50-of-canadians-feel-less-safe-than-2-years-ago-1.2978177

Address the history and current status of the objects known as Dwarf Planets to include their definition, why the classification was created, currently known examples, and where they are located. View this video on Pluto and this video on Chasing Pluto: Classifying a Planet.

Describe the various kinds of SSSB’s found in our solar system including their composition, where they are found, and their behavior. View Halley’s Comet and Small Bodies of the Solar System (this is a supplemental, not required, resource).

The atmospheric regions of the Sun are those regions above the apparent surface of the Sun (the photosphere). Describe these atmospheric regions including relative location, size, and temperature. View The Sun’s Atmosphere.

The interior regions of the Sun are those found below the photosphere or apparent surface. Describe each of these regions including relative location, size, temperature, and energy creation or transport as applicable. View The Sun’s Structure and The Inner Layers of the Sun.

1. Several major properties of the Jovian planets are quite different from Terrestrial planets. Describe at least three of the more significant differences between the two planet types.


2. Discuss the major features of the four major moons of Jupiter.


3. In terms of how they are defined, what properties do planets and dwarf planets have in common and how do they differ?


4. Several properties of Venus are the most extreme of all the terrestrial planets. Describe at least three of these extreme properties along with their causes.


5. It has been generally concluded that Mars at one time had significant amounts of water. What evidence is there to support this conclusion?

Questions:

1. Describe the temperature profile of the Sun from the inner core to the outer edge of the corona.



2. The Sun has differential rotation. Explain what this means and how it is possible.



3. Explain the cause of Sun spots.



4. Explain the difference between meteors, meteoroids, meteorites, and comets.



5. What is the definition of a dwarf planet? What are the names and locations of the objects that currently have this classification?