Available practice: 71 of 75 marks. Parts 5(a)(ii), 5(b)(i), 11(a) await marking support. Scores cover available parts only. Theory Paper 2: Section A is compulsory and Section B offers a choice of two questions. Four published mark-scheme discrepancies across the two variants are held from automatic marking.
(a)(ii)Using Fig. 3.1, identify which spring has been stretched beyond its limit of proportionality and justify your choice with values from the table.
Answer guidance
Using You must use the thing it names. An answer that reaches the right value another way may not score.
[2 marks]
(a)(iii)A student has three springs A, B and C. He measures the length of each spring, in turn, when different weights are placed on the end of each spring. His table of results is shown in Fig. 3.1. Calculate the unstretched length of spring A.
Answer guidance
Calculate Show your working. The method can earn marks even when the final value is wrong, and a bare answer often cannot.
[1 mark]
(b)A student has three springs A, B and C. He measures the length of each spring, in turn, when different weights are placed on the end of each spring. His table of results is shown in Fig. 3.1. Describe how the student can use spring A to determine the mass of a small rock.
Answer guidance
Describe Say what happens, in order. Reasons are not required unless the question also asks why.
[2 marks]
5054/22/M/J/16Cambridge O Level Physics 5054 · May/June 2016 · Paper 2 variant 2 · Question 3