Undergrad Conversion factors derivation.

Click For Summary
The discussion focuses on the conversion formulas between the MKS and CGS systems for force and work, highlighting that 1 Newton equals 10^5 dynes and 1 Joule equals 10^7 ergs. It emphasizes the dimensional analysis of force and energy, where force is expressed as M L T−2 and energy as M L² T−2. Additionally, it addresses the conversion of CGS units, specifying that centimeters convert to meters and grams convert to kilograms in the MKSA system. Understanding these conversions is crucial for accurate scientific calculations across different measurement systems. The conversation underscores the importance of dimensional consistency in physics.
akerkarprashant
Messages
74
Reaction score
9
TL;DR
Conversion factors derivation.
Queries regarding MKS to CGS system for the following formulas.

Force - Newton (MKS), Dynes (CGS)
Work - Joule (MKS), Ergs (CGS)

1N = 10^5 dynes.
1J = 10^7 ergs.

How the above unit conversion formulas are derived ?
 

Attachments

  • Conversion factors.jpg
    Conversion factors.jpg
    26.7 KB · Views: 152
Physics news on Phys.org
Look at the dimensions of force and energy.
force = M L T−2
energy = M L2 T−2

Convert CGS cm to MKSA metres.
Convert CGS gram to MKSA kg.
 

Thread 'Traveling through space at zero km/s'

In sci-fi when an author is talking about space travellers or describing the movement of galaxies they will say something like “movement in space only means anything in relation to another object”. Examples of this would be, a space ship moving away from earth at 100 km/s, or 2 galaxies moving towards each other at one light year per century. I think it would make it easier to describe movement in space if we had three axis that we all agree on and we used 0 km/s relative to the speed of...
View full post »

Similar threads

Problem converting joules to dynes
  • · Replies 5 ·
Replies
5
Views
2K
Graduate Historical clarification of the Planck formula of blackbody radiation
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad I'm calculating more energy out than I put in
  • · Replies 138 ·
5
Replies
138
Views
8K
Why Is the Conversion Between CGS and SI Units in Electromagnetism Confusing?
  • · Replies 2 ·
Replies
2
Views
2K
Conversion factor when converting from SI to natural units
  • · Replies 1 ·
Replies
1
Views
1K
Converting Electromagnetic Units: Gaussian to Superfluous Systems
  • · Replies 2 ·
Replies
2
Views
2K
Calculating Ring Capacitance: MKS Units & Math Involved
  • · Replies 3 ·
Replies
3
Views
6K
High School Help Scaling Gravity Simulation
  • · Replies 7 ·
Replies
7
Views
2K
High School Deriving the gravitational constant factor for lbf
  • · Replies 3 ·
Replies
3
Views
3K
Information on Different Systems of Units and Measurements
  • · Replies 9 ·
Replies
9
Views
2K