Changes

=== Dynamics ===

=== Dynamics ===

==== Force ====

==== Force ====

The cgi unit of [[force]] is the '''dyne''' (from the [[Greek]] '''δύναμαι''' or ''dunamai'' I can). One dyne is the amount of force needed to accelerate a one-gram mass one centimeter per second per second.

The cgs unit of [[force]] is the '''dyne''' (from the [[Greek]] '''δύναμαι''' or ''dunamai'' I can). One dyne is the amount of force needed to accelerate a one-gram mass one centimeter per second per second.

==== Pressure ====

==== Pressure ====

The cgi unit of [[pressure]] is the '''barye'''. One barye exerts one dyne of force on every square centimeter of area.

The cgs unit of [[pressure]] is the '''barye'''. One barye exerts one dyne of force on every square centimeter of area.

=== Work and power ===

=== Work and power ===

The cgi unit of work and [[energy]] is the '''erg''' (from the [[Greek]] '''εργον''' or ''ergon'' work). One erg is the amount of work done when exerting a force of one dyne over one centimeter, or the energy required to do that work.

The cgs unit of work and [[energy]] is the '''erg''' (from the [[Greek]] '''εργον''' or ''ergon'' work). One erg is the amount of work done when exerting a force of one dyne over one centimeter, or the energy required to do that work.

The cgi system does not, properly speaking, have a separate unit of power. Instead, it expresses power in ergs per second.

The cgs system does not, properly speaking, have a separate unit of power. Instead, it expresses power in ergs per second.

[[Category:Unit of measure]]

[[Category:Unit of measure]]