CSP: Code.org - Unit 3 Review

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

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

Look at the following code and identify the variables.

x=0

while x<4:

x=x+1

print ('x is ',+ x)

• 2 variables

• 1 variable

• 4 variables

• 3 variables

This holds a string of alphanumeric characters such as a person's name, a password, or the day of the week

• boolean variable

• number variable

• string variable

Grades would be an example of a...

• constant

• variable

This holds the value of information that may change in a computer program

• conditional

• iteration

• variable

This has only two values: true or false

• boolean variable

• string variable

• sprite

A ________ is a form of iteration; repeats code until a certain condition is met

• constant

• variable

• loop

All of the following are loops EXCEPT

• FOR

• WHILE

• Do While

• BUT

Which of the following is a test in a FOR LOOP?

• i+0

• i-0

• i<=10

• i