Astro HW Prev & Ch1 DT © 2012 Preview Ch – Q’s 4 Review Solar System, Milky Way Galaxy, Local Group (of galaxies), Virgo Supercluster, Universe.

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Presentation transcript:

Astro HW Prev & Ch1 DT © 2012

Preview Ch – Q’s 4 Review Solar System, Milky Way Galaxy, Local Group (of galaxies), Virgo Supercluster, Universe

Preview Ch – Q’s 4 Review Duh… Gravity

Preview Ch – Q’s 4 Review Lots

Preview Ch – Q’s 4 Review 100,000 ly

Preview Ch – Q’s 4 Review 1.5x10 11 m 150,000,000,000m 93,000,000 miles

Preview Ch – Q’s 4 Review Distance light travels in a year 1x10 16 m 6,000,000,000,000,000 miles

Preview Ch – Q’s 4 Review Protons, Neutrons, Electrons

Preview Ch – Q’s 4 Review Electrostatic Force

Preview Ch – Q’s 4 Review An organized step-by-step process of getting an answer – Observation (See Something) – Hyppopotamoose (Take a guess why you saw it) – Experimentation (Test it) – Theory (Revise your Hypotenuse) – Conclusion (Yeah, you got it)

Preview Ch - Problems Did it!

Preview Ch - Problems

Sun is 108 times bigger. – Sun = 0.2 x 108 = 21.6 cm MWG is WOWZERS bigger... – MWG = 100,000 ly

Preview Ch - Problems Yeah, right… – Let’s try it with TP later…

Preview Ch - Problems OH, STOP IT!

Preview Ch - Problems

Preview Ch – Test Yourself

Ch 1 – Q’s 4 Review 1.Imaginary sphere (ball) surrounding the earth showing where the stars are. 2.A group of stars that are NOT RELATED that just happen to form a shape to an idiot. 3.Zodiac is the group of constellations located along the sun’s ecliptic (path) on the celestial sphere.

Ch 1 – Q’s 4 Review 4. Path of the sun on the celestial sphere. 5. DUH! Tilt of earth’s axis of rotation allowing for uneven distribution of light and heat from the sun.

Ch 1 – Q’s 4 Review 6. NY has summer. April in Paris? What? 7. Along the ecliptic.

Ch 1 – Q’s 4 Review days. 9.

Ch 1 – Q’s 4 Review 10. Duh! EVERYTHING rises in East and sinks in West! 11. Planets don’t “twinkle”

Ch 1 – Q’s 4 Review Aristotle: Not much. Got just about everything wrong. Aristarchus: Estimated relative sizes of earth, Moon, & Sun, and relative distances to Moon & Sun. Eratosthenes: Measured C of earth. Ptolemy: Geocentric view Copernicus: Heliocentric view Tycho: Provided data Kepler needed

Ch 1 – Q’s 4 Review Kepler: Made 3 Laws of Planetary Motion (More on them later…) Galileo: Proved Copernicus was write (Found moons orbiting Jupiter and saw phases of Venus) Newton: Tied all of Kepler’s Laws and Galileo’s observations together with math proofs.

Ch 1 – Q’s 4 Review 13. Angle made by looking at something. 14. Thirds. Duh!

Ch 1 – Problems

Yeah, right… Later…

Ch 1 – Problems

Ch 1 – Test YoSeff