All Equations Flashcards
(28 cards)
Average speed (m/s) =
Distance(m)/time(s)
Velocity (m/s) =
Displacement(m)/time(s’
Period of a pendulum(s) =
Total time (s)/number of swings
Acceleration(m/s squared) =
Final velocity - initial velocity /time
A = v-u/t
Weight(N) =
Mass (kg) x Gravitational Field Strength(m/s squared
Or W=mg
Force (N) =
Mass(kg) x Acceleration(m/s squared)
F=ma
Density (kg/m cubed) =
Mass(kg)/Volume(m cubed)
Ron= M/v
Hooke’s Law:
Force x constant =extension
F=kx
Pressure(Pa) =
Force(N) / Area(m squared)
P = F/A
Liquid Pressure(Pa)=
Density(kg/m cubed) x gravitational field strength p(m/s squared) x height(m)
P = HroG
Work Done (J) =
Force (N) x Distance moved in direction of Force (N)
Power(w)
WorkDone or Energy(J)time(s)
Kinetic Energy(J) =
0.5 x mass(kg) x velocity (m/s) squared
Gravitational Potential Energy(J) =
Mass(kg) x Gravitational field strength x height(m)
GPE =mgh
Efficiency(%) =
Useful Output/(J or W)Total Input(J or W)
Moment(Nm) =
Force(N) x Perpendicular Distance (M)
M=fd
Momentum(Kgm/s)=
Mass(kg)xvelocity(m/s)
P=mv
Impulse (kgm/s or Ns) =
Force(N) x time(s)
Change in
Or
Ft = mv-mu
Force (N) =
Change in Momentum(kgm/s)Time(s)
Boyles law for gas pressure ata constant temperature
Pressure(Pa) x. Volume(m cubed) = constant
Specific Heat Capacity(J/kgC)=
Energy (J)/Mass(kg) x Temp change(C)
SHC =E/M x change in T
Current(A) =
Charge (C)/Time(s)
I=Q/t
Voltage =
Energy Transferred(J) / Charge (C)
Current(A) x Resistance(ohms)
