These are similar to one and two mark questions but you will be expected to write in more depth for three and four mark questions.
The diagram below shows the glider at rest on the air track. Complete the diagram to show the forces acting on the glider. Label the forces. One force arrow has been drawn for you. [3 marks]
An Edexcel question courtesy of Pearson Education Ltd.
Make sure the arrows are the same length  and labelled correctly .