Equations Flashcards
1
Q
Moment
A
Moment (Nm) = Force (N) x Distance (m)
M = Fd
2
Q
Pressure
A
Pressure (N/m2) = Force (N) / Area (m2)
P = F/A
3
Q
Pressure in liquid
A
Pressure (N/m2) = Height (m) x Density (kg/m3) x G.F.S. (N/m2)
p = hdg
4
Q
Density
A
Density (Kg/m3) = Mass (kg) / Volume (m3)
5
Q
Pressure in a closed system
A
P1V1 = P2V2
6
Q
Volume
A
Volume (m3) = Height (m) x Area (m2)
7
Q
Work Done
A
Work Done (J) = Force (N) x Distance (m) Wd = Fd
8
Q
Optical Power
A
Optical Power (D) = 1 / Focal Length
9
Q
Current
A
Current (A) = Charge (C) / Time (s
10
Q
Potential Difference
A
Potential Difference (V) = Energy (J) / Charge (C)
11
Q
Energy
A
Energy (J) = Potential Difference (V) x Charge (C)
E = VQ
Energy (J) = Potential Difference (V) x Current (A) x Time (s)
E = VIt
12
Q
Resistance
A
Resistance (o) = Potential difference (V) / Current (A)
R = V/I
13
Q
Weight
A
Weight (N) = Mass (kg) x G.F.S. (N/kg)
