Wednesday 9 24 14
Download
1 / 11

Wednesday 9-24-14 - PowerPoint PPT Presentation


  • 105 Views
  • Uploaded on

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.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Wednesday 9-24-14' - yetta-chan


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
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
Distances in the Universe

Any value will fit into it’s own value exactly ONCE!




1.6

8 km

1

300,000 km

300,000 km

= 3,000,000 km


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


To set up your problems
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


You can cancel places of 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

=


To do
To Do:

  • # 11

  • Finish Distance in Universe WS

4.5 trillion km = 1 light year.

1

4,500,000,000,000


ad