App Creators Semester Review

Who applies their knowledge of computation to creating solutions using a computer system?

• Physicist

• Computer Scientists

• Engineer

• Mathematician

What is an ordered set of instructions used to carry out a task?

• A conditional statement

• A bug

• An algorithm

• steps

What is the visual part of a computer program or operating system, that an end user interacts with the computing device or software?

• User Interface

• Main screen

• The App itself

• The Viewer

_________ is the process of identifying bugs or errors in a computer hardware or program and fix them.

• Proofing

• Bug ID

• Unbugging

• Debugging

What would happen to the MeaslesButton was clicked if it was already playing?

• It would start

• It would pause

• It would keep playing

• Nothing would happen, the code is incorrect

What component should you use when you want to display text on the screen?

• Button

• Check Box

• Label

• Image

This is an example of what type of algorithm?

• Conditional Algorithm

• Linear Algorithm

In App Inventor, events are programmed using event handlers. What are event handlers?

• The period when a program is running.

• The layer of an app that contains the program that tells the app how to behave.

• In a program, an event that is triggered by user interaction with the user interface.

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

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

• .aia

• .com

• .hex

• .html

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

• Comments show where a bug is located in the code

• Comments enable and disable code in the program

• Comments describe the purpose and desired outcome of the code

• Comments include code that the program can execute when it runs into errors