Si base quantities and units
Sponsored Links
This presentation is the property of its rightful owner.
1 / 11

SI Base Quantities and Units PowerPoint PPT Presentation


  • 190 Views
  • Uploaded on
  • Presentation posted in: General

SI Base Quantities and Units. Metric(SI) Prefixes. Chapter1:Length. 1m  10 -7 of the distance from the equator to the pole 1m = length of the path traveled by light in vacuum during the time interval of 1/299,792,458 of a second. Mass.

Download Presentation

SI Base Quantities and Units

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


SI Base Quantities and Units


Metric(SI) Prefixes


Chapter1:Length

1m  10-7 of the distance from the equator to the pole

1m = length of the path traveled by light in vacuum during the time interval of 1/299,792,458 of a second


Mass

1kg = mass of the platinum-iridium cylinder in Paris

1u = 1.6605 10-27kg ( unified atomic mass unit)


Time

1s = 1/24*60*60 day=1/86400 day

1s = time required for 9,192,631,720 periods of radiation of the Cs-atom


Vector Addition(head to tail)

The 3 vectors Vi can be added by any order to form VR

VR= (V1+ V2)+V3

VR= V1+(V2+V3)


Vector addition(by components)

Components are projections along the axis

Find components by trigonometry


Vector Multiplication

Scalar product

Vector product


Royal Academy: Nobel Prize 2005


Frequency Comb Apparatus


Fluorescence from stored ions for different degrees

of laser cooling

Ion crystal

Fluorescence from stored ions for different degrees

of laser cooling


  • Login