Understanding Variables and Constants Quiz

What is a variable in programming?

• A value that never changes

• A value that can change

• A type of computer

• A kind of keyboard

Which of these is a constant?

• The number of days in a week

• The score in a game that keeps changing

• The name of a player that can be changed

• The temperature outside

What is the main purpose of using variables in a program?

• To store changing information

• To make the computer look nice

• To print out the same thing every time

• To slow down the program

Which of these is an example of selection in programming?

• Adding two numbers together

• Printing a message only if a condition is true

• Storing a value in a variable

• Writing your name

If you want to store the number of apples in a basket, which would you use?

• Variable

• Constant

• Keyboard

• Monitor

Which of these is a good example of a constant in a school programme?

• The number of months in a year

• The number of students in a class

• The score in a football match

• The temperature in the classroom

What does selection allow a program to do?

• Repeat the same thing over and over

• Make decisions based on conditions

• Store information

• Draw pictures

Which of these is the correct way to use a variable in a simple equation?

If you want to check if someone is old enough to vote, which programming concept would you use?

• Selection

• Constant

• Loop

• Keyboard

Which of these is NOT a variable?

• The number of days in February

• The score in a video game

• The amount of water in a glass

• The number of steps you walk each day