Multiple Choice Questions: Variable Names in Computer Science (Grade 6)

📚 Quick Study Guide

• 🏷️ Variable names are used to store data in a computer program.
• 🔑 Choose names that are easy to understand and remember.
• ✏️ Variable names should start with a letter (a-z, A-Z) or an underscore (_).
• 🔢 They can contain letters, numbers, and underscores.
• 🚫 Variable names cannot contain spaces or special symbols (like !, @, #, $, %, ^, &, *).
• reserv Don't use reserved words (like 'print', 'if', 'else') as variable names.
• 📏 Keep variable names relatively short and to the point.
• 💡 Be consistent in your naming style (e.g., use snake_case or camelCase).

🧪 Practice Quiz

1. What is the best first character for a variable name?
   1. A number
   2. A special symbol (like $)
   3. A letter or an underscore
   4. A space
2. Which of the following is NOT allowed in a variable name?
   1. Letters
   2. Numbers
   3. Underscores
   4. Spaces
3. Why should you choose easy-to-understand variable names?
   1. To confuse other programmers
   2. To make your code run faster
   3. To make your code easier to read and understand
   4. It doesn't matter what you name them
4. Which of these is a reserved word that you shouldn't use as a variable name?
   1. my_variable
   2. count
   3. print
   4. name
5. Which of the following is a valid variable name?
   1. 1st_place
   2. my variable
   3. my_Variable
   4. @myVariable
6. What is a good practice to follow when naming variables?
   1. Use long and complicated names
   2. Be inconsistent with your naming style
   3. Use reserved words
   4. Be consistent with your naming style
7. Which of these variable names follows snake_case naming convention?
   1. myVariable
   2. MyVariable
   3. my_variable
   4. myvariable