Lists and Loops in Computer Science

What is the word used to describe repetition in programming?

• Sequence
• Selection
• Iteration
• Coding

What does this code do?

• Moves forward 1 time

• Moves forward forever

• Moves forward 5 times

• Moves left

For this scenario related to turtle/robot drawing, indicate whether it is better to write a loop or a function (or a set of functions) to handle the task:

Drawing out the letters of a word "HELLO"

• Loop

• Function

For this scenario related to turtle/robot drawing, indicate whether it is better to write a loop or a function (or a set of functions) to handle the task:

Drawing 100 tiny dots in a line.

• Loop

• Function

What is a possible output when the following code segment executes? The ending position of the turtle is shown in each diagram. The starting position is shown as a white triangle in cases where the turtle starts and ends in different locations.

• 
• 
• 
• 
• 

A Boolean expression is an expression that evaluates to which of the of the following?

• Yes/Maybe/No

• True/False

• Any Integer

• Integers between 1 and 10

• Any single character

Which of the following is true about while loops ?

• While loops terminate after a fixed number of loops that is pre-determined

• While loops terminate after a fixed number of loops that is determined after the loop executes once.

• While loops run as long as a given boolean condition is true.

• While loops run as long as a given boolean condition is false.

• While loops are known as "forever loops" and never stop until the program is halted by the user.

  Answer

Which vocabulary word is:

a common method for referencing the elements in a list or string using numbers

• list

• element

• index

Which vocabulary word is:

an ordered collection of elements

• list

• element

• index

Match the index with the value.

var myNumbers = [32, 64, 33, 0, 15, 26, 3]

myNumbers[4]

• 64

• 15

• 0

• 32