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WorksheetsApp Lab Quiz (Introduction)
Total questions: 10
Worksheet time: 6mins
What is App Lab used for?
Writing long essays
Building apps
Watching videos
Which of the following can you add in App Lab? (Choose all that apply)
Buttons
Images
Sound
Music streaming
What block is used to change an element's color, size, or text?
playSound()
setProperty()
onEvent()
Which property is needed to change the picture on the screen?
"background"
"image"
"sound"
What do you need to create interaction (like clicking a button)?
Use the setProperty() block
Use the onEvent() block
Use repeat() block
Which line correctly sets the background color to "red"?
setProperty("screen1", "background-color", red)
setProperty("screen1", "background-color", "red")
setProperty("screen1", background-color, "red")
Why is using good IDs important?
To make the app run faster
To find and control elements easily
To reduce memory usage
You want a button to show an image when clicked. What should you use? (Choose two)
setProperty()
onEvent()
playSound()
randomNumber()
What happens if you forget to put quotes around a color name in setProperty()?
The color will still change
It will use a random color
The program might not work
What’s the purpose of Design Mode in App Lab?
To write JavaScript code
To debug your app
To add and arrange screen elements
