Review for Summative Assessment - App Creators

Front

What is the file extension for the programs in App Creators?

Back

.aia

Front

There are certain criteria for naming your projects (programs) in MIT App Inventors. Which program name would you not be able to name your project? Options: Calculator App, My_Cat_Program, DrawingFile, Game_TimeProgram

Back

Calculator App

Front

What are event handlers in App Inventor?

Back

A block of code that is triggered when a certain event happens.

Front

Which event handler will play an audio file when a check box is clicked in App Inventor?

Back

Front

Which of the following best describes the role of the navigator in pair programming?

Back

Helps point out coding errors to the driver

Front

What does this block of code do? Options: When the MeaslesButton is clicked, if the Measles audio file is playing, the Meningitis audio file will begin playing also. When the MeaslesButton is clicked, if the Measles audio file is playing, it will pause, else the Measles audio file will begin playing. When the MeningitisButton is clicked, the Measles and Meningitis audio files will start playing. When the MeaslesButton is clicked, if the Measles audio file is playing, the Measles audio file will stop.

Back

When the MeaslesButton is clicked, if the Measles audio file is playing, it will pause, else the Measles audio file will begin playing.

Front

Which of the following computational items is used to temporarily store values in a program? Options: Variables, Procedures, Databases, For loops

Back

Variables

Front

When creating a program, how does the use of comments help debug problems later?

Back

Comments describe the purpose and desired outcome of the code.

Front

What is the purpose of the hint feature in a TextBox?

Back

To give the user an indication as to what to type in

Front

Which is true about the given flowchart? Options: If A is true, then C will be performed. If A is true, then B will be performed. If A is false, then B will be performed. B or C will never be performed in this flowchart.

Back

If A is true, then B will be performed.