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Unit 1 Let's Create an App Assessment

Total questions: 14

Worksheet time: 4hrs 30mins

Name
Class
Date
1.

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

a)

The Designer Viewer

b)

The Blocks Viewer

c)

The Properties Pane

d)

The Media Drawer

2.

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

a)

The Designer Viewer

b)

The Blocks Viewer

c)

The Properties Pane

d)

The Media Drawer

3.

Which of the following algorithms would move the arrow from the Start block, through the grey outlined path on the maze, to the End block? Note that the turnLeft and turnRight turn the arrow in place – they do not advance the arrow forward!

a)

moveForward - 4 blocks

turnRight

moveForward - 6 blocks

turnLeft

moveForward - 6 blocks

b)

moveForward - 2 blocks

turnRight

moveForward - 2 blocks

turnLeft

moveForward - 3 blocks

turnRight

moveForward – 4 blocks

turnLeft

moveForward – 2 blocks

c)

moveForward - 2 blocks

turnRight

moveForward – 2 blocks

turnLeft

moveForward – 2 blocks

turnRight

moveForward – 4 blocks

turnLeft

moveForward – 4 blocks

d)

moveForward - 2 blocks

turnRight

moveForward – 2 blocks

turnLeft

moveForward – 6 blocks

turnRight

moveForward – 2 blocks

turnLeft

moveForward – 4 blocks

4.

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

a)
b)
c)
d)
5.

Use the code below to answer the question.


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

a)

A button being clicked

b)

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

c)

The accelerometer sensing shaking

d)

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

6.

An app developer wants to create the code for a checkbox component that when selected (checked), turns a label component’s background color to red; when not checked turns the label component’s background color to blue.


Which of the following flowcharts is the correct way to show the algorithm for this behavior?

a)
b)
c)
d)
7.

What does UI stand for?

a)

user interface

b)

universal identifier

c)

view layer

d)

under image

8.

What kind of question can a conditional statement be?

a)

yes/no

b)

multiple choice

c)

short answer

d)

long answer

9.

An If/Then statement uses

a)

Boolean logic

b)

Common Sense

c)

Strategic Planning

d)

Complex equations

10.

Where can you find the If/Then Blocks?

a)

Control Drawer

b)

Logic Drawer

c)

Variables Drawer

d)

Math Drawer

11.

IF you are wearing green ride bus 1; else ride bus 2.


You are wearing blue. What bus do you ride?

a)

Bus 1

b)

Bus 2

c)

Walk

d)

None of the above

12.

In a flow chart the symbol for a condition is:

a)

Diamond

b)

Rectangle

c)

Oval

d)

Octagon

13.

In a flow chart the symbol for a Command is:

a)

Rectangle

b)

Diamond

c)

Oval

d)

Arrow

14.

Which code when checked, sets the button's background image to display a dog picture

a)
b)
c)
d)