Unit 6.4 and 6.5 Revision

Unit 6.4 and 6.5

Revision

Multiple Choice

It is a space where interactions between users and machines (smartphones) occur.

• Interface

• Wireframe

• Screen

Multiple Choice

It conveys the overall direction and description of the user interface

• Interface

• Wireframe

• Screen

Open Ended

How helpful an interface is in an app?

The MIT App Inventor

Multiple Choice

The sidebar where to find the different available components for the app interface.

• Viewer

• Palette

• Designer Button

• Properties

Multiple Choice

Tab that allows users to access the components.

• Viewer

• Palette

• Designer Button

• Properties

Multiple Choice

Allows users to change the setting, size, behaviour etc. of the components

• Viewer

• Palette

• Designer Button

• Properties

Multiple Choice

Blocks that are used for general behaviour

• Component

• Built-In

• Control

Multiple Choice

Blocks that are used for specific behaviour

• Component

• Built-In

• Control

Multiple Choice

The following are the methods used to test the app program, except:

• AI Companion

• Bluetooth

• USB

• Emulator

Multiple Choice

Components that are part of the User Interface.

• Visible

• Non-visible

Multiple Choice

Not seen and not a part of the UI screen, but provide access to built-in functions of the device

• Visible

• Non-visible

Algorithm

Flow Chart and Pseudocode

Fill in the Blank

It is a set by step instruction that is followed by a computer.

Fill in the Blank

It makes use of symbols which are connected among them to indicate the flow of information and processing.

Fill in the Blank

It is writing out an algorithm in plain language, instead of in code.

Open Ended

Write an algorithm that will show “Hello there!” on a label when the button is clicked.

Event-Driven Programming

Multiple Choice

Any user interaction, such as a click or key press, in response to prompt from the system.

• Event-driven programming

• Event

• Code

Multiple Choice

It is when a program is designed to respond to user engagement in various forms.

• Event-driven programming

• Event

• Code

Multiple Choice

The only instruction that the computer understand.

• Event-driven programming

• Event

• Code

Variable

Global and Local

Fill in the Blank

A container storing a value that changes or can be changed

Fill in the Blank

A type of variable that you can use wherever you are in the program

Fill in the Blank

You can only access these variables in that specific function where they are declared or passed in as an argument.

Debugging

Multiple Choice

The process of detecting and removing of existing and potential errors (also called as 'bugs') in a code that can cause it to behave unexpectedly or crash

• Debugging

• Bug

• Decode

Multiple Choice

Error in the spelling and grammar of the program

• Syntax

• Runtime

• Logic

Multiple Choice

Perform something the system cannot do

• Syntax

• Runtime

• Logic

Multiple Choice

Errors in the way the script works

• Syntax

• Runtime

• Logic