In the AQA A specification multiple-choice questions are used in Unit 4, which covers fields, circular motion and SHM. This Exam talkback discusses some questions on electrostatics that illustrate the sorts of skill involved in answering them successfully. These questions are taken from the January 2010, June 2003, June 3013 and January 2004 AQA Unit 4 papers, and are reproduced by kind permission of AQA. The commentary that follows has neither been provided nor approved by AQA.
Answer C was a popular choice. How can we untangle this and see if it is correct? Students who are used to calculating the answers to questions given all the necessary quantities might look at this sort of question and wonder what to do. After all, there is no value for Q, or d for that matter. There seems to be a blur of answers all looking rather similar to each other, with no obvious way to start.
Your organisation does not have access to this article.
Sign up today to give your students the edge they need to achieve their best grades with subject expertise
Subscribe
