[Massachusetts Department of Education MCAS logo]
Massachusetts Comprehensive Assessment System
Technology/Engineering Formula Sheet
Formulas
[V equals I multiplied by R] Pressure = [Force divided by Area]
[P equals I multiplied by V] Area of a circle = [Pi r squared]
Variables
I = current r = radius
P = power
R = resistance
V = voltage
Definitions and Abbreviations
AC = alternating current psi = pounds per square inch
DC = direct current [Pi approximately equal to 3.14]