CS Express Variables & For Loops Lesson 19-23 Progress Check

What is a VARIABLE?

• A placeholder for a piece of information that can change.

• A variable used throughout a program that never changes value.

• A named group of programming instructions.

A CONSTANT is...

• A placeholder for a piece of information that can change.

• A statement that only run under certain conditions.

• A variable used throughout a program that never changes value

Which of the following describes the "for loops" block?

• Loops that have NO predetermined beginning, end, and increment (step interval).

• Loops that have a predetermined beginning, end, and increment (step interval).

• Loops that have a predetermined beginning but no end or increment (step interval).

How is a "for loop" different from a "repeat loop"?

• In "for loops" you have more control over when the loop starts.

• In "for loops" you have more control over when the loop ends.

• In "for loops" you have more control over what your loop should increase by every time it runs.

• All are true.

• None are true.

Why is the "for loops" block useful?

• You can change the increment to numbers other than 1 each time.

• You can see the counter variable.

• You can write more complex code.

• All of the choices are true.

• None of the choices are true.

True or false? Using the "for loops" block will not make programming this artwork easier.

• True

• False

The "for loop" is a new kind of "repeat loop".

• True

• False

There is no difference in the "for loops" and "repeat loops" blocks?

• True

• False

_____________ are loops where you set the start, stop, and step values.

• Functions

• "Repeat loops"

• "For loops"

• Variables

You can set the start, stop and step values in "repeat loops".

• True

• False