# A-Level 物理 | A2 Physics的Paper5 高分技巧（2）

3. Method of analysis（这里有3分，A1, A2 and A3) 3分所包含的内容如下：

1

Question：

Convert the equation that given in the question into y = kx + b form and state gradient and y-intercept, or convert the equation into y = kx form.

2

State the details of the graphs to be drawn as appropriate. 这里占1分。需要考生写出所作图象的y轴与x轴分别是什么，这一分相当容易拿，通过对题目中的方程变形，你就能确定y轴与x轴代表什么。拿上面的题目做例子，很明显，lg h就是y轴上的值，lg f就是x轴上的值。答题格式如下：

4. Safety consideration. (1分，S1）

Candidates should be able to assess the risks of their experiment and describe precautions that should be taken to keep risks to a minimum.

5. Additional detail. (5 分，D1, D2, D3, D4 and D5)

These five marks will be available for additional relevant detail. How these marks are awarded will depend on the experiment that is to be planned, but they might, for example, include marks for describing how additional variables are to be kept constant, or for a diagram of a circuit needed to make a particular measurement or a description of initial experiments or an explanation of how to obtain calibration curves.