Y9 Loops

In programming, what is iteration?

• 
  The repetition of steps within a program.

• 
  The order in which instructions are carried out.

• A decision point in a program.

• Testing a program to make sure it works.

Why is iteration important?

• 
  It determines the order in which instructions are carried out.

• It allows code to be simplified by removing duplicated steps.

• It allows multiple paths through a program.

• 
  It ensures the code works correctly.

Which two statements are used to implement iteration?

• 
  IF and WHILE

• ELSE and WHILE

• FOR and WHILE

• IF and ELSE

FOR loops are

• loops which run an unknown number of times

• loops which run for a specific number of times

• 
  the same as if statements

• not part of programming

Which type of loop iterates until instructed otherwise?

• 
  FOR loop

• WHILE loop

WHILE loops are

• 
  loops which run an unknown number of times

• loops which run for a specific number of times

• the same as if statements

• not part of programming

Which kind of loop would be used?

I need a program that will keep letting me add money to a piggy bank until I get to £100.

• 
  FOR Loop

• WHILE Loop

Which kind of loop would be used?

I need a program that will keep letting me add a monthly payment for 12 months.

• 
  FOR Loop

• WHILE Loop

Which kind of loop would be used?

I need a guessing game program that will let me keep guessing until I get the right answer.

• 
  FOR Loop

• WHILE Loop

Which kind of loop would be used?

I need a revision program that will run through revision questions 4 times.

• 
  FOR Loop

• WHILE Loop