Pupils have launched a petition after claiming they were not given enough time for their physics exam.

Scots secondary pupils claim that there were four more questions than they had prepared for in the advanced higher exam.

The disgruntled teenagers claim that previous practice papers set by exam body the SQA had 13 questions by the exam itself, which was sat on Tuesday, had four more than that. A total of 22 people signed the petition by Wednesday.

It is the second petition launched in days in recent weeks in relation to exams after thousands of pupils signed an online campaign over this year's National 5 maths paper.

The creator of the latest petition says on its page that it is not intended as "whining about a hard exam or begging because we need certain grades to get into university".

It then calls on the SQA realise the length of the paper and this issue and take "it into consideration whilst marking/deciding grade boundaries before the results are published in August."

The petition states: "There was a big problem for timing in the 2016 Advanced Higher Physics exam (24/05/16).

"Many people were struggling to get it finished, and in fact, most did not. The practice papers issued by the SQA were all 13 questions in length and were obviously what many candidates were used to/had prepared for.

"The live paper was 17 questions, more than anticipated, and although it was still 140 marks, a lot of the questions contained several words and vast amounts of information which had to be absorbed and processed.

"This took up precious time, especially question 4 (throwing the ball in a rocket), which did not dictate the angle at which the ball was thrown at making it a bit more challenging than at first glance.

"The idea of this petition, is not intended as "whining" about a hard exam or begging because we need certain grades to get into university.

"But in hope of the SQA realising this issue and taking it into consideration whilst marking/deciding grade boundaries before the results are published in August."