# 2008 CAPE Physics TEST

Jun 17th, 2015
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Question 1 (a) Three significant figures for t2 in table: y/m t² / s² 0.40.079 0.6 0.117 0.8 0.171 1.0 0.208 1.2 0.250 1.4 0.285 Graph : Axes [1]; Scales [1]; Plotting [2]; Best line [1] Gradient : 4.9 m/s² reasonable value of gradient from graph

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2008 CAPE Physics Unit 1 Trinidad PapersQuestion 1(a)Three significant figures for t2 in table: [1]y/mt / s0.40.0790.60.1170.80.1711.00.2081.20.2501.40.285Graph :Axes [1]; Scales [1]; Plotting [2]; Best line [1]Gradient : 4.9 m/s reasonable value of gradient from graph [1]Deduce that gradient = g[1]Calculate g using gradient[1](b)Acceleration vs time: straight line parallel to time axis, a = constant[1]Velocity versus time: straight line through origin, v t[1]Displacement versus time: parabolic curve from origin, s t[1](c)v = u + 2ay[1]v = 0 + 19.6 x 0.9[1]v = 4.2 m/s[1]Question 2(a)(i)Diffraction: waves spread out when they pass by an edge or through a gap.[1] (ii) 2 sets of circular waves drawn through slits[1] Wavelength preserved after passing through slits[1] (iii)os marked where wavefronts from both waves intersect[1]xs marked halfway along a wavefront from one slit and between two wavefronts from the other slit [1] (iv)Constructive: e.g. two waves in

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