PLTW APP Creators Summative Unit Review

1. An app in App Inventor should display the name of every 5th student in a class of 20 starting with the 5th student. What should the from, to, and by parameters be?

• 
• 
• 
• 

1. Which of the following best describes the role of the Navigator in pair programming?

• Controls the keyboard

• Helps point out coding errors to the Driver

• Controls the mouse

• Dictates the code to the Driver

Which of the following components can be used to trigger an event handler when the device is shaken?

• Location sensor

• Accelerometer sensor

• Clock

• Spinner

Which of the following computational items is used to temporarily store values in a program?

• Variables

• Procedures

• Data bases

• For Loops

Which of the following computational items can be used to reduce the redundancy of code the most and make the program shortest?

• Variable

• Event handler

• Data base

• For Loop

To add a button to a screen in App Inventor, where would the Button component be dragged to?

• Designer view

• Blocks viewer

• Properties pane

• media drawer

To program a Button component in App Inventor, where would the code be added?

• Designer View

• Blocks Viewer

• Properties pane

• Media Drawer

Which of the following event handlers will play an audio file when a check box is clicked in App Inventor?

• 
• 
• 
• 

Which of the following statements correctly describes the event for the event handler shown ?

• A button being clicked

• The app speaking the message “I’m shaking!”

• The accelerometer sensing shaking

• The app displaying the message “I’m shaking!”

Which of the following is the increment for the loop ?

• number

• from

• to

• by