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MIT App Inventor, Programming Concepts Flashcards | StudBud
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MIT App Inventor, Programming Concepts
MIT App Inventor, Programming Concepts
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Basic questions about the App Inventor developers tool
Flashcards
34 cards
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Questions
34
Answers
1
In which Block set will you find this block?
Logic
Math
Procedures
Variables
2
The playing field for any App Inventor game is called a(n) ______?
Label
Horizontal Alignment
Canvas
Clock
3
On the Palette, under which item will you find the HorizontalArrangement?
Layout
User Interface
Media
Sensors
4
When does this block of code run?
When the Clock starts running in the app
Every time the Clock becomes a timer
Every time the Clock detects a second has elapsed
When the Clock becomes a timer
5
What will happen?
Label1 TextColor will keep changing
The program will crash
Nothing will happen
6
What is a string in programming?
a variable that can be true or false
a sequence of text characters
none of the above
keywords that the computer reads as code
7
To get a HorizontalArrangement to fill the width of the screen, which Property should be set?
AlignHorizontal
AlignVertical
Height
Width
8
How many seconds is 500 milliseconds?
5 seconds
1 second
1/3 of a second
1/2 of a second
9
On the Blocks page, under which item will you find the "If-Then" blocks?
Text
Math
Logic
Control
10
What is an if statement?
A way to generate random integers
A block that executes the code inside if a condition is true
A list of actions the app must do to complete a task
A block to call a procedure in your code
11
On the Palette, under which item will you find the Clock?
Sensors
Media
User Interface
Layout
12
Which menu option do you choose to begin developing an app?
Export selected project
Start new project
Save project
AI Companion
13
What is a procedure, or function?
A variable that has a number as its value
A list of actions the app must do to complete a certain task
A list of variables
A way to add an ImageSprite to your app
14
On the Palette, under which item will you find the TextBox?
Layout
Media
Sensors
User Interface
15
What is a list in programming?
A series of tasks the computer should do
An ordered place to store multiple variables
A series of tasks the programmer should do
16
On the Blocks page, under which item will you find the "True" and "False" blocks?
Logic
Procedures
Math
Control
17
This block is used to set up a ___?
Event
Procedure
Behavior
Task
18
What is an index in a list?
A number representing where the variable is in the list
The command accessing the variables inside the list
The variable name of the list
Nothing- indexes are not for lists
19
Which of these is NOT one of the 3 main screens in App Inventor?
Designer
Connect
Blocks
Projects
20
What can lists store?
String variables
Number variables
All of the above
Booleans
21
What is "other" in this block?
The other sensors and components on the screen
The other blocks in this code block
The other imagesprite LadyBug has collided with
The other LadyBug functions
22
Which ImageSprite Event causes this sprite to bounce off the edge of the screen?
Dragged
CollidedWith
EdgeReached
Touched
23
What is a mutator block in App Inventor?
Creates a procedure
Changes images
Changes the shape/options of a block
Creates a database
24
What is this code segment doing?
Moving Aphid to the edge of GameCanvas
Moving the Aphid to 0,0 on GameCanvas
Moving Aphid to a random location on GameCanvas
Moving Aphid's direction to the GameCanvas
25
Which menu option allows you to test your app?
Build
Connect
Project
Help
26
On the Blocks page, under which item will you find the "Addition" blocks?
Control
Procedures
Math
Logic
27
On the Palette, under which item will you find the Canvas?
Media
Drawing and Animation
User Interface
Layout
28
On the Palette, under which selection will you find a Button?
Media
Layout
Sensors
User Interface
29
What is a variable in programming?
a place to store information
a way to modify an if statement
an error in your program
a way to calculate math expressions
30
What is a boolean?
A variable that can be any integer
A variable that can have the values "true" or "false"
A variable that is a string of text
A variable that is a decimal
31
On the Palette, under which item will you find the Accelerometer?
Sensors
Media
Layout
User Interface
32
Which menu option allows you to create a new app?
Projects
Help
Build
Connect
33
What are "color" and "length" in this procedure block called?
Function parameters/variables
Extra functions
If statements
Booleans
34
On the Blocks page, under which item will you find the "Random Integer" blocks?
Logic
Text
Control
Math
