2.3 Programming Data Review

Which of the following is the BEST example of a variable name?

• a1

• x

• high_score

• 123score

What is the main purpose of a variable in programming?

• To store data

• To print data

• To delete data

• To sort data

Which of the following would be considered a constant?

• Number of goals scored in a game

• Today’s lunch menu

• The value of pi (3.14159)

• A student’s daily attendance count

A variable that does not change during a program is called a (a)   .

A variable can only change once in a program.

• True

• False

What is the difference between a variable and a constant?

• A constant never changes, but a variable can

• A variable never changes, but a constant can

• Both can change values

• Constants are always numbers, variables are words

Which of these is NOT a good variable name?

• total_points

• playerLives

• score2

• thing

In the our example, “spread peanut butter” would be considered a _______.

• Variable

• Constant

• Function

• Container

Why do programmers use functions?

• To make code longer

• To break complex tasks into smaller steps

• To erase data

• To rename variables

Which of the following is an example of an array?

• high_score = 500

• snacks = ["Chips", "Cookies", "Candy"]

• gravity = 9.8

• make_sandwich()