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Junior Cert Science

13 Key Formulas

QuestionAnswer
Density g/cm3 MASS / VOLUME
Speed m/s DISTANCE / TIME
Acceleration m/s2 (FINAL SPEED - FIRST SPEED) /TIME TAKEN
Moment of Force Nm FORCE X PERPENDICULAR DISTANCE (between force and fulcrum)
Pressure N/m2 FORCE / AREA
Work J FORCE X DISTANCE
Power W Work Done / Time Taken
Voltage V Current (I) x Resistance
kWh number of kW x number of hours
Area LENGTH x WIDTH
Volume LENGTH x WIDTH X HEIGHT
Weight in Newtons Mass (in KG) x 10
Slope of a graph Y2 - Y1 X2 - X1
Created by: jojo1979
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