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Wednesday 9-24-14

Wednesday 9-24-14. Clear off desk – Pop QUIZlet ! When finished with quizlet place upside down on floor Read & answer questions on pp.280-281. B. F. A. G. E. C. D. Irregular. Spiral. Elliptical. Distances in the Universe.

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Wednesday 9-24-14

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  1. Wednesday 9-24-14 • Clear off desk – Pop QUIZlet! • When finished with quizlet place upside down on floor • Read & answer questions on pp.280-281

  2. B F A G E C D

  3. Irregular Spiral Elliptical

  4. Distances in the Universe Any value will fit into it’s own value exactly ONCE!

  5. Anything divided by itself is one!

  6. ANYTHING divided by itself is one!

  7. 1.6 8 km 1 300,000 km 300,000 km = 3,000,000 km

  8. 9.5 trillion km 9.5 trillion km/year = 9,500,000,000,000 9.5 trillion 9,500,000,000,000 =47.5 trillion km 1 47,500,000,000,000 km =47.5 x 1012

  9. To set up your problems 10. How many km is a star that is 20 light years away. 20 ly • Write what value you are given to start your problem. • Put the unit of the starting value on the bottom of your conversion factor. • Put the unit you are changing it to on the top • Write in the values of the 2 units that are equal. • Do the math & cancel units km 9.5 trillion 1 _________________ ly 190 trillion km

  10. You can cancel places of 10! • For Example working problem 10 backwards: 190,000,000,000,000 km = how many light years? 190,000,000,000,000 km x 1 ly 9,500,000,000,000 km 190,000,000,000,000 km 9,500,000,000,000 190,000 km 9,500 =

  11. To Do: • # 11 • Finish Distance in Universe WS 4.5 trillion km = 1 light year. 1 4,500,000,000,000

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