JSS 1 Digital Technologies Flashcards: Meaning, Types and Uses of Loops in Programming

Question 1

What is iteration in programming?

Accepted Answer

the repetition of a set of instructions

Question 2

What is a loop?

Accepted Answer

a control structure that repeats instructions

Question 3

The main benefit of a loop is that it ____.

Accepted Answer

avoids writing the same instructions many times

Question 4

A count-controlled loop repeats ____.

Accepted Answer

a specified number of times

Question 5

A condition-controlled loop repeats while or until ____.

Accepted Answer

a stated condition is met

Question 6

A for loop is commonly used when ____.

Accepted Answer

the number of repetitions is known

Question 7

A while loop continues as long as its condition remains ____.

Accepted Answer

true

Question 8

A nested loop is ____.

Accepted Answer

a loop inside another loop

Question 9

To make a sprite take 10 steps four times, the repeat count should be ____.

Accepted Answer

4

Question 10

If a loop adds 2 to x three times and x starts at 1, the final x is ____.

Accepted Answer

7

Question 11

A loop that never reaches its stopping condition is called an ____ loop.

Accepted Answer

infinite

Question 12

Why is an accidental infinite loop a problem?

Accepted Answer

The program may continue without completing the intended task.

Question 13

To prevent a while loop from running forever, the program should ____.

Accepted Answer

update a value involved in its condition

Question 14

A square can be drawn by repeating “move forward, turn 90°” ____.

Accepted Answer

4 times

Question 15

To draw three separate squares with repeated side instructions, a programmer may use ____.

Accepted Answer

nested loops

Question 16

Which task best suits a count-controlled loop: clap five times, wait until a button is pressed, ask once for a name, or save one file?

Accepted Answer

clap five times

Question 17

Which task best suits a condition-controlled loop: move until the sprite touches an edge, print exactly three labels, add two numbers once, or open one document?

Accepted Answer

move until the sprite touches an edge

Question 18

Which is NOT a benefit of loops: shorter code, easier updates, consistent repetition, or guaranteed absence of errors?

Accepted Answer

guaranteed absence of errors

Question 19

Tracing a loop means recording the variable values ____.

Accepted Answer

after each repetition

Question 20

Before running a loop, a programmer should check its starting value, condition, and ____.

Accepted Answer

update step

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