Presentation on theme: "Size and Scale of the Universe January 3-4"— Presentation transcript:
1Size and Scale of the Universe January 3-4 Physical ScienceSize and Scale of the Universe January 3-4
2Notebook set up Table of Contents #. Date Title-Page – Page Number1. January 3-4 Size and scale of the universe - 112Leave 4 pages (2 sheets) for the table of contentsNumber each page in the bottom right corner
3Notebook set up Date: Daily work: IN: Objective: Success Criteria: Synthesis PictureI own this I still don’t understandthisOUT:5Daily work:6
4In Put the following in order of decreasing magnitudes: city, universe, house, galaxy, state, solar system,planet, continent,
5Universe, galaxy, solar system, planet, continent, state, city, house
6Goals: Objective: understand the size and scale of the universe Success Criteria:Be able to:describe the size of the universecompare stellar objects based on their relative size
7Astronomy Study of space Big Idea: How is mass/energy conserved and transformed in space?
8What is in each of the following “containers” Universe-Galaxy-Solar System-Stars, planets, dark matter, elements, energy, galaxies, solar systems, constellations, comets, asteroids
9Read over the questions, as you watch the video think about the parts that you will need to answer the questions, write yourself some notes to be able to do that without having to pause the video
10Why is looking at starlight really a look at the past? If a star ceases to exist when would we know about it? Justify based on your background knowledge and answer above.Why is communication with and travel to other galaxies so difficult? What implications would this have on determining if there is extraterrestrial life?
11Powers of Ten We jump by a factor of 100 in each frame. This also shows the context of theEarth in the Universe.
17Out:Describe how you would have to send a message to someone in another galaxy? What things would you need to consider and what would make this difficult?
18Explain the size of the solar system in relation to the Milky Way Galaxy. Explain in terms of the universe.What makes the universe operate the way it does? (why do planets orbit around the sun, why does the Milky Way orbit around itself, what keeps things from crashing into each other, why do they move at all, etc.)
19Applying ProportionsWe can compare different scales by using ratios or proportions (comparing fractions)Units on denominator do not have to equal units on the numerator, but comparisons must be set up to be equal.scale (in) = scale (in)actual (ft) actual (ft)
20Sample ProblemIf the Earth were the size of a globe, how big would Mercury be?Given informationEarth’s diameter= milesGlobe’s diameter (scaled Earth)= 12 inchesMercury’s diameter= 3032 milesFind:Scaled Mercury= ???
21Sample Problem Scaled Mercury (inches) Actual Mercury (miles) Scaled Earth (inches) =Actual Earth (miles)12 inches =8000 miles? Inches3032 miles? = (3032 x 12) / 8000? = 4.5 inches
22Sample Problem #2If the earth were the size of a globe, how far away would Mercury be?Given information:Earth’s diameter= milesGlobe’s diameter (scaled Earth)= 12 inchesMercury’s distance= 57,000,000 milesFind:Scaled Mercury= ???