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    d.  Identify the sensor that is used in weather apps to measure air humidity.
                            (i)  Gyroscope                                    (ii)  Hygrometer

                           (iii)  Light Sensor                                (iv)  Proximity Sensor
                        e.  Mark the event that is triggered when the user lifts the finger from the screen.

                            (i)  Touch Up                                     (ii)  Touch Down
                           (iii)  Touch Move                                  (iv)  Click

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

                                                Ball, Data, Blocks, Brightness, Gyroscope

                        a.  MIT App Inventor use colourful              instead of long codes.

                        b.  The                sensor is used in VR apps to detect rotation and tilting.

                        c.                 is a round object that you can add to the Canvas.

                        d.   The NFC sensor enables devices to share              when close together.

                        e.  The Light Sensor is used to adjust screen            .

                     3.  Write 'T' for true and 'F' for false.

                        a.  The Click event is triggered when the user taps an element.

                        b.  Canvas cannot detect dragging or swiping actions.

                        c.  The Accelerometer detects temperature around the device.

                        d.  The Location Sensor uses GPS to find the device’s position.

                        e.  A sensor lets an app interact with the environment.

                     4.  Think and answer.

                        a.  Why is MIT App Inventor useful?

                         _______________________________________________________________________________

                         _______________________________________________________________________________

                        b.  Explain the role of the Canvas in app development.

                         _______________________________________________________________________________

                         _______________________________________________________________________________

                                                                                              Touch to Motion with MIT  69

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