PHYSICS - Trial Paper Collection

papercollectionNO12PHYSICSPaper 3SECTION AMARKING CRITERIAMARKSUB TOTAL1(a) (i) State the manipulated variable correctlyAngle of incidence / i 1 1(ii)(iii)State the responding variable correctlyAngle of refraction / r // sin r 1 1State the constant variable correctlyGlass block // Semicircular glass block // Refractive index 1 1(b) (i) Record the readings of r correctlyDiagram 1.2 : 11 o2 2Diagram 1.6 : 41 oDiagram 1.3 : 20 oDiagram 1.4 : 29 oDiagram 1.5 : 36 oNote : 1. All 5 values correct – 2 marks2. 3 or 4 values correct – 1 mark(ii)(iii)State the values of sin i correctlyDiagram 1.2 : 0.2588Diagram 1.3 : 0.5000Diagram 1.4 : 0.7071Diagram 1.5 : 0.8660Diagram 1.6 : 0.9659Note : 1. Accept e.c.f. from (b)(i)2. All 5 values correct – 2 marks3. 3 or 4 values correct – 1 mark4. Not necessary to have consistent number of d.p.State the values of sin r correctlyAll 5 values of sin r correctDiagram 1.2 : 0.1908Diagram 1.3 : 0.3420Diagram 1.4 : 0.4848Diagram 1.5 : 0.5878Diagram 1.6 : 0.6561Note : 1. Accept e.c.f. from (b)(i)2. All 5 values correct – 2 marks3. 3 or 4 values correct – 1 mark4. Not necessary to have consistent number of d.p.1 12 2