(Karel) While Loops & Control Structures Practice

What type of loop allows us to repeat code as long as a condition is true?

• If Statement

• While Loop

• If/Else Statement

• For Loop

What is the syntax for a while loop?

• if(condition) {

  // code to execute if condition is true }

• if(condition) {

  // code to execute if condition is true } else { // code to execute if condition is false }

• for(var i = 0; i < 5; i++) { // code to execute }

• while(condition) {

  // code to execute while // condition is true }

What is the purpose of control structures in programming?

• All of the above

• To repeat code

• To ask questions about the world

• To shape the flow of programs

What is the purpose of an if-else statement?

• To change what happens in a program based on if a statement is false

• To repeat code a fixed number of times

• To change what happens in a program based on if a statement is true

• To repeat code

What is the best term that relates to the actions needed for an if/else statement?

• else

• if

• while

• otherwise

What type of loop is suitable for counting out five tennis balls?

• If/Else Statement

• If Statement

• While Loop

• For Loop

What is the purpose of the while loop in the given problem?

• To repeat code

• To ask questions about the world

• To shape the flow of programs

• To repeat a fixed number of times

What is the purpose of the checkAndPutBalls function?

• To put down tennis balls if none are there

• To check for balls being present

• To check for balls being present and to put down a ball if none are there

• To put down tennis balls

Which two statements ask questions?

Which two control structures are used to repeat code?