1) How is voltage calculated when current & resistance are know? a) V = I x R b) V = I ÷ R c) V = I ÷ Z d) V = I + R 2) How is resistance calculated when voltage & current are known? a) R = I ÷ V b) R = V ÷ I c) R = V + I d) R = I - V 3) Power is calculated using a) I2 x R b) I x R c) I2 ÷ R d) I2 - R 4) Total resistance in a series circuit is calculated using a) Rt = R1 + R2 + R3 etc b) Rt = R2 + R2 etc c) Rt = R1 - R2 - R3 etc d) Rt = R1 x R2 x R3 etc 5) Total resistance in a parallel circuit is calculated using a) 1/Rt = 1/R1 - 1/R2 - 1/R3 etc b) 1/Rt = 1/R1 + 1/R2 + 1/R3 etc c) 1/Rt = 1/R1 ÷ 1/R2 ÷ 1/R3 etc d) 1/Rt = 1/R1 x 1/R2 x 1/R3 etc 6) Power is calculated using a) P = V R b) P = V R2 c) P = V I d) P = I2 V 7) Force is calculated using a) F = m d b) F = m s c) F = m g d) F = m e 8) Work done is calculated using a) W = f s b) W = f d c) W = f a d) W = f g 9) Calculations involving levers, the formula used is a) F1 + d1 = F2 - d2 b) F1 d1 = F2 d2 c) F1 ÷ d1 = F2 ÷ d2 d) F1 - d1 = F2 ÷ d2 10) To change mm2 to m a) x103 b) x10-3 c) x106 d) x10-6 11) The cosine of an angle is a) adjacent/hypotenuse b) opposite/adjacent c) hypotenuse/opposite d) adjacent/opposite 12) Resistivity is equal to a) R = ρ L a b) R = ρ L/a c) R = ρ ÷ L a d) R = ρ + L - a 13) EMF is calculated using a) e = B L v b) e = B - L + v c) e = B L/v d) B = L/B v 14) Force on a current carrying conductor can be calculated using a) F = B ÷ I L b) F = B I L c) F = B I ÷ L d) F = L ÷ B I 15) Peak voltage to RMS voltage a) Divide by 0.636 b) Subtract 0.707 c) Multiply by 0.707 d) Add 0.636 16) To change Peak to average voltage a) Multiply by 0.707 b) Divide by 0.070 c) Subtract 0.636 d) Multiply by 0.636 17) In mechanical science power is calculated using a) P = w ÷ t b) P = f x d c) P = m ÷ w d) P = d + t 18) Tangent is a) Opposite x adjacent b) Hypotenuse x opposite c) Adjacent + hypotenuse d) Opposite ÷ adjacent 19) Sine is a) Adjacent ÷ hypotenuse b) Opposite ÷ adjacent c) Opposite ÷ hypotenuse d) Hypotenuse x opposite 20) % efficiency is a) Input x output x 100 b) output ÷ input x 100 c) Input - output ÷100 d) Output x input ÷100

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