3. App Inventor Quiz (Check)

Match the following components with their categories in the Palette pane:

• Media

• Components for media handling

• User Interface

• Components for managing data storage

• Drawing and Animation

• Components for drawing and animation

• Storage

• Components for user interface design

Which component is used to display components in a container that scrolls from left to right?

• HorizontalArrangement

• VerticalArrangement

• HorizontalScrollArrangement

• TableArrangement

Which component is used to record audio?

• Sound

• SoundRecorder

• SpeechRecognizer

• TextToSpeech

Which component allows the app to recognize speech?

• TextToSpeech

• Sound

• SpeechRecognizer

• VideoPlayer

Which component controls phone vibration?

• Sound

• Player

• Camcorder

• TextToSpeech

What is the primary function of the Camcorder component?

• To play video files

• To record a video

• To recognize speech

• To translate text

The SoundRecorder component allows an app to (a)  

• Play short sound files
• Record audio
• Convert speech to text
• Play videos

What is the function of the TextToSpeech component in an app?

• Plays short sound files

• Records audio

• Reads text aloud

• Plays videos

The component that converts speech to text in an app is (a)  

• Sound
• SoundRecorder
• SpeechRecognizer
• VideoPlayer

(a)   is used to draw a sequence of line segments on a Map.

• A. Circle
• B. FeatureCollection
• C. LineString
• D. Marker