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A-LevelComputer ScienceObject-Oriented Programming (OOP)May/June 2023Paper 4 Q232 Marks

A computer game is being designed that will include different vehicles. A prototype for the game is being developed using object-oriented programming. The class Vehicle stores data about the vehicles. Each vehicle has an identification name, a maximum speed, a current speed and a horizontal position. The value IncreaseAmount is added to the current speed each time the vehicle increases its speed. Vehicle ID: STRING stores the identification name for the vehicle MaxSpeed : INTEGER stores the maximum speed CurrentSpeed : INTEGER stores the current speed IncreaseAmount : INTEGER stores the amount CurrentSpeed increases by HorizontalPosition : INTEGER stores the horizontal position Constructor() initialises ID, MaxSpeed and IncreaseAmount to the parameter values initialises both CurrentSpeed and HorizontalPosition to 0 GetCurrentSpeed() returns the current speed GetIncreaseAmount() returns the increase amount GetHorizontalPosition() returns the horizontal position GetMaxSpeed() returns the maximum speed SetCurrentSpeed() assigns the parameter to the current speed SetHorizontalPosition() assigns the parameter to the horizontal position IncreaseSpeed() calculates and stores the new speed and horizontal position of the vehicle

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Computer Science Question

Topic

This structured question tests Object-Oriented Programming (OOP) in A-Level Computer Science (syllabus code 9618). It is worth 32 marks.

Source

This question appeared in the Cambridge A-Level Computer Science May/June 2023 examination, Paper 4 Variant 1.

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