formula_set_condensed.pdf - IB Physics Formula Sheet(from...

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IB Physics Formula Sheet (from the Physics Data Booklet ) _____________________________________________________________________________________ Topic 1: Measurement and uncertainties 1.1. Measurements in physics 1.3.Vectors and scalars A H = A cos T 1.2. Uncertainties and errors A V = A sin T If y = a ± b then y = a + b If y = ab/c then y/y = a/a + b/b + c/c If y = a n then y/y = | n a/a | _____________________________________________________________________________________ Topic 2: Mechanics 2.1. Motion 2.2. Forces 2.3. Work, energy and power 2.4. Momentum and impulse v = u + at F = ma W = Fs cos T p = mv s = ut + (1/2) at 2 F f µ s R E K = (1/2) mv 2 F = ' p/ ' t v 2 = u 2 + 2 as F f µ d R E P = (1/2) k ' x 2 E K = p 2 /2 m s = (1/2)( v + u )/t ' E P = mg ' h power = Fv Efficiency = W out / W in = P out / P in _____________________________________________________________________________________ Topic 3: Thermal concepts 3.1. Thermal concepts 3.2. Modelling a gas Q = mc ' t p = F / A Q = mL n = N / N A pV = nRT E K = (3/2) k B T = (3/2) RT / N A _____________________________________________________________________________________ Topic 4: Waves 4.1. Oscillations 4.2. Travelling waves 4.3. Wave characteristics T = 1/ f c = O f I v A 2 I v x -2 4.4. Wave behaviour 4.5. Standing waves I = I 0 cos T _____________________________________________________________________________________ Topic 5: Electricity and magnetism 5.1. Electric fields 5.2. Electric currents 5.3. Electric cells 5.4. Magnetic effects I = ' q / ' t 6 V = 0 (loop) H = I ( R + r ) F = qvB sin T F = kq 1 q
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