Lottery System in Scratch

This video tutorial covers the concept and implementation of a lottery program using Scratch. It guides viewers through setting up variables, executing the lottery, adjusting list lengths, and displaying results. The tutorial emphasizes the use of Scratch's features to automate processes and manage lists effectively, ensuring a smooth lottery execution. The session concludes with a review of the key steps and concepts taught.

What is the purpose of using a variable to store the number of lottery participants in Scratch?

• To keep track of the number of winners

• To store the names of the participants

• To adjust the number of participants dynamically

• To display the number of participants on the screen

Which block in Scratch is used to ask the user for input?

• Ask and Wait

• Broadcast

• Forever Loop

• If-Else

What is the first step in setting up the lottery system in Scratch?

• Create a variable for the number of participants

• Display the list of participants

• Ask for the number of participants

• Create a list of winners

How is the range for random number selection determined in the lottery system?

• By the total number of variables

• By the number of times the lottery is run

• By the length of the participant list

• By the number of winners

What happens when the execution count exceeds the number of participants in the lottery?

• The program resets

• The winners are displayed

• The participant list is cleared

• The program stops

What should you check if the winners are not displayed correctly?

• The length of the participant list

• The value of the random number

• The number of times the lottery is executed

• The variable storing the winner index

How can you save the list of winners in Scratch?

• By exporting the list

• By printing the list

• By copying the list

• By saving the project

What is the purpose of using two lists in the lottery system?

• To increase the complexity of the program

• To make the program run faster

• To separate winners from participants

• To store different types of data

What is the final step after executing the lottery N times?

• End the program

• Display the participant list

• Hide the participant list and show the winner list

• Reset the participant list

What is a key benefit of using list length in the lottery system?

• It increases the number of participants

• It automatically adjusts the range for random selection

• It decreases the number of winners

• It allows manual adjustment of the list