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Unformatted text preview: Prepared by Education Haven Find an experienced Physics Tutor to go through these formulas? Call us at 6219-1272 or visit http://matchtutor.com.sg to find out more. O-Levels Physics Formula Sheet Need a tutor? Visit http://matchtutor.com.sg . 1 O Level Physics Formula Sheet Measurements Base SI Units Kg, m, s, A, K, mol Mass SI Unit is Kilogram (kg). Length SI unit is metre (m). Time SI Unit is second (s). Current SI unit is Ampere (A). Temperature SI unit is Kelvin (K). Amount of substance is molar (mol). Number Prefix n (10-9 ), μ (10-6 ), m (10-3 ), c (10-2 ), d (10-1 ), K (10 3 ), M (10 6 ) nano (n), micro (μ), milli (m), centi ©, deci (d), kilo (K), mega (M). Equations in Motion Average Speed s = ∆ d / ∆ t d=distance, t= time Average Velocity v = ∆ x/ ∆ t slope of distance-time graph Acceleration A = ∆ v / ∆ t x = displacement, t= time, v = u + at x = ut + ½ at 2 v 2 = u 2 + 2ax v = gh 2 u=initial velocity g =gravitational constant=9.81 m/s 2 h = height Newton’s Laws of Motion Newton’s First Law = ∑ → F At equilibrium, the body continues to stay in its state of rest or of uniform speed as long as no net force and no net torque is 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 For every force object A acts on object B, object B will exert an equal and opposite force on object A. Forces and Torque Reaction Forces Acting in opposite direction. For example, the ground will give a reaction force that is equivalent to the man’s weight....
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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.
- Fall '11