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    c.  Meena uses a study planner app that reminds her about homework deadlines and upcoming tests
                          by showing alerts on her phone. Which feature of apps allows her to receive such timely reminders?

                            (i)  Notifications                             (ii)  Security

                           (iii)  Touch-friendly                          (iv)  Cloud
                        d.  While creating a simple app in MIT App Inventor, Rohit wants to write a set of instructions once and
                          use them multiple times in different parts of his app. Which block should he used to create such
                          reusable actions?

                            (i)  Control                                   (ii)  Variables

                           (iii)  Procedures                               (iv)  Logic

                        e.  Sneha is designing an app for her class project that displays instructions like “Enter your name” and
                          “Click Submit” on the screen. Which UI component should she use to show these messages?

                            (i)  Button                                    (ii)  Label
                           (iii)  TextBox                                  (iv)  ListView

                     2.  Fill in the blanks using the words from the help box.

                                                Variables, Mobile, Properties, Coding, Web

                        a.  ______________ apps are designed for touch, allowing you to tap, swipe or pinch the screen.
                        b.                 apps are accessed through a web browser.

                        c.   The MIT  App  Inventor is a user-friendly tool  that  lets you  create  mobile  apps  without  complex
                                          .
                        d.   The Properties panes are used to change the              of the selected components.

                        e.                 blocks store values that can change while the app runs.

                     3.  Write ‘T’ for true and ‘F’ for false.

                        a.  Native apps are designed to work on multiple platforms.

                        b.  The MIT App Inventor allows you to create apps without any coding.

                        c.  Hybrid apps are expensive and difficult to maintain.

                        d.  A TextBox component is used for collecting text input from users.

                        e.  Control Blocks allow you to make decisions using true/false values.

                     4.  Think and answer.

                        a.  What are mobile apps?
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                                                                                     Creating Apps with MIT App Inventor  107

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