41717930-O-Level-Physics-Formula-Sheet - O Level Physics...

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‘O’ Level Physics Formula Sheet 1 http://physictuition.blogspot.com Measurements Base SI Units Kg m s A K mol SI Unit for mass: Kilogram SI Unit for length: metre SI Unit for time: second SI Unit for current: Ampere SI Unit for Temperature: Kelvin SI Unit for Amount of substance: molar Number Prefix n (10 -9 ) μ (10 -6 ) m (10 -3 ) c (10 -2 ) d (10 -1 ) K (10 3 ) M (10 6 ) nano micro milli centi deci Kilo Mega Kinematics Average Speed s = ∆d / t Average Velocity v = x/ ∆t Acceleration a = v / ∆t ∆d = total distance travelled (area under speed-time graph) x = total displacement ∆t = total time taken v = change in velocity Velocity (slope of displacement-time graph) Acceleration (slope of velocity-time graph) v = u + at x = ut + ½ at 2 v 2 = u 2 + 2ax v free fall = 2 °ℎ u = initial velocity v = final velocity t = time a = acceleration x = displacement h = height g = gravitational constant = 9.81 m/s 2 Dynamics Newton’s First Law ∑ ± = 0 at equilibrium A body continues to stay in its state of rest or uniform motion in a straight line as long as there is no net force/moment acting on the body. Newton’s Second Law F= ma The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Newton’s Third Law
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This note was uploaded on 09/07/2011 for the course RANDOM R 101 taught by Professor T.s. during the Fall '11 term at Research College.

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41717930-O-Level-Physics-Formula-Sheet - O Level Physics...

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