AC2.1 Keep me in the Loop (Intro to Loop)

What is the main purpose of using loops in computer science?

• To reduce redundancy in code

• To slow down program execution

• To confuse programmers

• To increase the length of the code

What is a common problem with repetitive code in computer programs?

• It only affects the performance of the program

• It makes the code longer and harder to read

• It makes the code shorter and easier to understand

• It has no impact on the code

What type of loop is used when you want to repeat steps a specific number of times in an algorithm?

• If loop

• While loop

• For loop

• Do-while loop

What is the purpose of a conditional statement in a for loop?

• To determine whether to continue to the next block of code

• To determine the starting point of the loop

• To determine the increment value of the loop

• To determine the ending point of the loop

What is the default starting point for the 'number' variable in a for loop?

• 3

• 2

• 1

• 0

What does the 'by' parameter specify in a for loop?

• The increment value for the 'number' variable

• The condition for the loop to continue

• The starting point of the loop

• The ending point of the loop

When does a for loop stop executing?

• When the 'number' variable is not equal to the 'end point'

• When the 'number' variable is less than the 'end point'

• When the 'number' variable is greater than the 'end point'

• When the 'number' variable is equal to the 'end point'

What block in a flowchart is used to represent a yes or no answer in a conditional statement?

• Square block

• Triangle block

• Rhombus block

• Circle block

In MIT App Inventor, which control block is used to create for loops?

• While block

• For each block

• Repeat block

• For loop block

What does the 'from' parameter specify in the for each number from to loop in MIT App Inventor?

• The condition for the loop to continue

• The ending point of the loop

• The increment value for the 'number' variable

• The starting point of the loop