System Ryngwladol o Unedau: Gwahaniaeth rhwng fersiynau

Cynnwys wedi'i ddileu Cynnwys wedi'i ychwanegu
Dim crynodeb golygu
Dim crynodeb golygu
Llinell 155:
|''Potential difference''
|'''V'''
|[[Foltfolt]], V
|V = I.R
|-
Llinell 161:
|''Current''
|'''I'''
|[[Amperamper]], A
|I = V/R
|-
Llinell 167:
|''electric resistance''
|'''R'''
|[[Ohmohm]], Ω
|R = V/I
|-
Llinell 173:
|''electric inductance''
|'''L'''
|[[Henry (uned)|Henryhenry]], H
|H = Ώ.s
|-
Llinell 179:
|''electric capacitance''
|'''C'''
|[[Ffaradffarad]], F
|F = s/Ώ
|-
Llinell 185:
|''Charge''
|'''Q'''
|[[Coulombcoulomb]], C
|Q = I.t
|-
Llinell 191:
|''Radioactivity'' a ''Radioactive decay''
|'''Bq'''
|[[Becquerelbecquerel]]
|1/s neu A= -λN
|-
Llinell 197:
|''Power''
|'''P'''
|[[Watwat]], W
|P = V.I neu P = I<sup>2</sup>.R
|-
Llinell 203:
|''Energy''
|'''E'''
|[[Joulejoule]], J
|E = Q.V neu V = E/Q
|-
Llinell 215:
|''Force''
|'''F'''
|[[Newton (uned)|Newtonnewton]], N
|F = m.a
|-
Llinell 221:
|''Mass''
|'''m'''
|[[Cilogramcilogram]], kg
|F = m.a
|-
Llinell 227:
|''Weight'' neu ''force''
|'''W'''
|[[Newton (uned)|Newtonnewton]], N
|W = m.g
|-
Llinell 239:
|''Moment of force'' neu ''torque''
|'''M'''
|[[Newtonnewton-metr]], Nm
|IM = F.l
|-
Llinell 257:
|''Pressure''
|'''P'''
|[[Pascal (uned)|pascal]], Pa (N/m<sup>2</sup>)
|P = F/A
|-
Llinell 274:
![[Amledd]]
|''Frequency''
|'''f''' neu '''ν''' ('''ν''' = ''nu'' Groeg)
|[[Hertzhertz]], Hz
|f = 1/t (t = cyfnod o amser)
|-
Llinell 287:
|''Work'' neu ''heat''
|'''Wd'''
|[[Joulejoule]], J
|Wd = F.d
|-
Llinell 293:
|''Potential energy''
|'''EP'''
|[[Joulejoule]], J
|EP = m.g.Δh (h = uchder)
|-
Llinell 299:
|''Kinetic energy''
|'''EC'''
|[[Joulejoule]], J
|EC= ½ m.v<sup>2</sup>