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Programming and Software Development
Quick questions on Python control flow and functions explained: H2 Computing
7short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is selection?Show answer
Selection chooses between branches with if, elif and else. Conditions are tested top to bottom; the first true branch runs and the rest are skipped:
What is iteration?Show answer
Iteration repeats statements. A for loop iterates a known sequence; a while loop repeats while a condition holds:
What is scope?Show answer
Scope is where a name is visible:
What is an infinite while loop?Show answer
A while condition that the body never changes loops forever; ensure each iteration moves toward making it false.
What is q1?Show answer
State the difference between a for loop and a while loop. [2 marks]
What is q2?Show answer
What does a function return if it has no return statement? [1 mark]
What is q3?Show answer
Why does referencing another function's local variable cause an error? [2 marks]
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