revision for checkpoint 7

The Front-end Designer area of App Inventor is where you add blocks of code.

• yes

• no

The _____________ is used to test your app in App Inventor.

• Emulator

• build

• layout

Which sensor in the smartphone tells you how many steps you have taken?

• Gyroscope

• Pedometer

• Accelerometer

In App Inventor, the best use for a Listview component is to________________.

• show an image on the screen

• select one of the two options

• show a list of items on the screen show a list of items on the screen

Most apps have multiple screens.

• yes

• no

What does the below code do?

• Read the information from the database

• When the green button is clicked, changes the paint color to green

• If the red button is clicked, adds a canvas to the screen If the red button is clicked, adds a canvas to the screen

The horizontal arrangement component is used to keep other components organised and next to each other to the left and right.

• yes

• no

In App inventor, the canvas is used to add an image file to the screen.

• yes

• no

The instruction below allows the app to _______________.

• Clear the canvas

• Clear the button

• Clear the image Clear the image

What is the name of the item in the red box in the image below?

• a textbox

• a comment

• a code block a code block