Variables Quiz

Grace, Maya, and Zoe are working on a project to track the number of books read by students in their school. Why would they use variables in their programming?

• To dynamically track the number of books each student has read

• To update the number of books read by each student

• To create complex expressions for the number of books read

• To assign the number of books read to memory

Anika has a score in a game. She then scores an additional 100 points. What happens when the code 'newScore = score + 100' is executed?

• The value of 'newScore' is assigned as 100

• The value of 'newScore' is assigned as the sum of Anika's current score and 100

• The value of 'newScore' is assigned as Anika's current score

• The value of 'newScore' is assigned as 'score + 100'

In a game developed by Aria, Abigail is the player. Every time Abigail collects a coin, how can Aria code to increase Abigail's current score by one point?

• All of the above

• score = score + 1

• score += 1

• score++

In a video game, Arjun has a certain number of lives. If the code 'lives = lives - 1' is executed, what does it do?

• Assigns the value of 'lives' as the difference between 'lives' and 1

• Decreases the value of 'lives' by 1

• Assigns the value of 'lives' as 1

• Subtracts 1 from the value of 'lives'

Henry has a variable named 'score' in his code. He initially set it to 0. After scoring 10 points in a game, he updated the 'score' variable to 10. What is this process called?

• Variable initialization

• Variable reassignment

• Variable declaration

• Variable assignment

Arjun and Abigail are playing a game. Arjun has 2 apples and Abigail also has 2 apples. Arjun then gets as many apples as both of them had. Abigail then gets as many apples as Arjun has now. What is the final count of apples with Arjun and Abigail?

• Arjun = 2 apples, Abigail = 2 apples

• Arjun = 4 apples, Abigail = 4 apples

• Arjun = 4 apples, Abigail = 6 apples

• Arjun = 6 apples, Abigail = 4 apples

Aria, David, and Isla are working on a group project for their programming class. They are discussing the benefits of using variables in their code. David suggests that the main advantage is that it:

• Enables them to perform complex mathematical calculations

• Enables their code to execute more efficiently

• Allows them to allocate memory dynamically

• Facilitates the readability of their code