Code.org Quiz2

What property would you adjust to change the color of text displayed on a label?

• background-color

• text-color

• font-family

• border-color

If you want to hide an element on the screen, which property should you set?

• opacity

• display

• visibility

• position

In Code.org, what does the setScreen() function do?

• It changes the background color of the current screen

• It switches the displayed screen to another predefined screen

• It resets all screens to their original states

• It deletes the current screen

What does the addEventListener() function do in programming?

• It creates a new button on the screen

• It listens for user interactions on specified elements

• It changes the text of an element

• It deletes an event from the system

In a sound board application, which of the following is necessary to play a sound?

• Calling changeSound() function

• Using the playSound() function with a specified sound

• Adding a sound file directly to the button

• Changing the button's text property

What is the primary purpose of comments in code?

• To increase the file size

• To explain the code to others (or yourself)

• To execute specific functions

• To change the appearance of the app

Why is it important to test your app frequently during development?

• To ensure it looks good

• To catch and fix errors early

• To add more features

• To make it run faster

In the context of programming, what is a variable used for?

• To store data that can change

• To display static text

• To create new screens

• To delete elements

Which of the following best describes an "if statement"?

• A command that always runs

• A condition that executes code based on true or false

• A way to loop through elements

• A method to display text

What does changing the background-color of a button to "blue" signify in an application?

• The button is inactive

• The button has been clicked

• The button's appearance has changed

• The button's function has been modified