Question

self-check 5.7
cs-040: exploring computer science 1 dimitrova 4th / unit 5: what more can i do with basic programming skills?

1. which of the following are possible reasons to use a timer. (select all that apply.)

□ as a way to let the user know how long they have been running the program.
□ as a way to limit how long a game or program should run (used with a stop all block.)
□ as a way to count down.

1. how many timers can you have running in one program.

○ as many as you want to make.
○ three. one counting up, one counting down and one talking to the program that is not visible for the user.
○ two. one counting up and one counting down.
○ one.

Explanation:

For question 6: Timers in programming can track elapsed program runtime for users, enforce a maximum runtime for programs/games paired with a stop function, and perform countdown functions. All listed options are valid use cases.
For question 7: In most programming environments (including introductory ones like the context suggests), there is no hard limit on the number of concurrent timers; you can create as many as needed for the program's functionality.

Answer:

6.

• As a way to let the user know how long they have been running the program.
• As a way to limit how long a game or program should run (used with a "stop all" block.)
• As a way to count down.

1. As many as you want to make.