Final Exam Review - Circuit Boards

Which of the following are outputs of a Circuit Playground? (Select two)

• Left button

• LEDs

• Temperature sensor

• Buzzer

You want your app to update when you shake the board. Which sensor should you use?

• LED

• Button

• Temperature

• Accelerometer

Describe the following code

• Listen to the buzzer sensor for 100 milliseconds

• Add the text "C4" to the buzzer note 100 times

• Update the buzzer variable to "C4"

• Buzzer plays the note C4 for 100 milliseconds

You are designing a program to respond to the left button on the Circuit Playground. Which line of code are you most likely to see in your program?

• 
• 
• 
• 

Which of the following best describes the code?

• When the feelingLabel is clicked, the text is "Happy".

• When the text of the feelingLabel is changed to "Happy", it makes a click sound.

• When the happyButton is clicked, the text of the feelingLabel is changed to "Happy".

• When the text of happyButton is changed to "clicked", the text of the feelingLabel is changed to "Happy".

In which scenarios would you most likely use getProperty? (Select two)

• Change the homescreen background color to beige

• See which option the user selected in the dropdown

• Update the width of a picture

• Read the value that the user chose in a slider

You are given the following function that adds points to the score. How would you call the function to add 10 points?

• updateScore()

• updateScore(points)

• updateScore points

• updateScore(10)