Section 1 Chapter 3 - Iteration

Question 1

Iteration

Answer 1

Repetition through the use of loops

Question 2

Properties of a while loop (2)

Answer 2

• The expression controlling the loop must be a boolean

- The expression is tested at the start of the loop

Question 3

Difference between REPEAT UNTIL and WHILE

Answer 3

REPEAT UNTIL tests the expression at the end and is therefore always run at least once

Question 4

Definite iteration

Answer 4

Iteration where the number of loops is known at the beginning (for)

Question 5

Indefinite iteration

Answer 5

Iteration where the number of loops is not known and is reliant upon some condition (while)