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Physical Science Formulas Chapter 1 Introduction to Science A lw V lwh Chapter 2 Matter D m V Chapter 3 States of Matter P F A Chapter 11 Motion v F1 F2 A1 A2 P1 P2 d t a PV PV 1 1 2 2 T1 T2 P1 P2 T1 T2 PV 1 1 PV 2 2 V1 V2 T1 T2 v v f vi t t Chapter 12 Forces F ma Fg G w mg m1m2 d2 p mv Chapter 13 Work and Energy W Fd EFF p W t MA Fout din Fin d out PE mgh KE 1 2 mv 2 Wout Win Chapter 14 Heat and Temperature TF 1.8TC 32.0 TC TF 32.0 1.8 TK TC 273 Q mcT Chapter 17 Electricity V IR P IV Chapter 18 Magnetism no formulas used P I 2R P V2 R Fe k q1q2 d2 ME PE KE Variables a = acceleration A = area c = specific heat D = density d = distance din = input distance dout = output distance EFF = efficiency F = force Fe = electric force Fg = gravitational force Fin = input force Fout = output force PE = potential energy h = height I = current KE = kinetic energy l = length m = mass MA = mechanical advantage ME = mechanical energy p = momentum p = power P = electric power P = pressure q = charge of particle Q = heat R = resistance T = temperature TC = Celsius temperature TF = Farenheit temperature TK = Kelvin temperature ΔT = change in temperature t = time v = velocity vf = final velocity vi = initial velocity Δv = change in velocity V = voltage V = volume w = weight w = width W = work Win = work in Wout = work out Definitions c = speed of light = 3.00 x 108 m s G = universal gravitation constant = 6.67 x 10-11 k = Coulomb constant = 8.99 x 109 N m2 C2 g = acceleration due to gravity on Earth = 9.8 1 N 1 kg m s2 N m2 kg 2 1J=1N•m m s2 1 W (watt) = 1 J s Rules for Significant Figures 1. Non-zero numbers do count. 2. Zeros between numbers do count. 3. Zeros to the right of the decimal, to the right of a number do count. 4. Zeros in front of numbers do not count. 5. Zeros to the left of the decimal only count if they are in between a number and the decimal. When multiplying or dividing, your answer has the same number of significant figures as the number in the problem with the least number of significant figures. When adding or subtracting, your answer has the same number of decimal places as the number in the problem with the least number decimal places.