OAT Physics Formulas Questions and Answers

Velocity -Answer- v=Δd/Δt (m/s) Acceleration -Answer- a=Δv/Δt (m/s²) Force -Answer- F=ma (N) Newton -Answer- kg x m/s² Work -Answer- Fd (J) KE -Answer- ½mv² (J) PE (gravitational) -Answer- mgh (J) Power (as related to work) -Answer- W/∆t=fv (J/s) J/s -Answer- kg x m² / s² Density -Answer- ρ=m/V(volume) (kg/m²) Pressure -Answer- P=F/A (A=πr² for a circle) (Pascals) Hydrostatic Pressure (measured at a depth d from the surface of a liquid) -Answer- pogd (Pascal) P=measured pressure, g=gravity, d=depth from surface Pascal -Answer- kg/ms² SI Unit of Length -Answer- m (meter) SI Unit of Mass -Answer- kg (kilogram) SI Unit of Time -Answer- s (second) SI Unit of Electric Current -Answer- A (amperes) SI Unit of Temperature -Answer- K (kelvin) SI Unit of Luminous Intensity -Answer- Cd (candela)