I_am_sharing__GRADE_7_CBSE_WORKSHEET_edited__with_you

Page 1: Multiple Choice and Short Answer Questions

I. MULTIPLE CHOICE QUESTIONS

1. Which function repeats consecutively until Arduino is turned off?a) Loop()b) Setup()c) delay()ANS: Loop()

2. Which function is used to remove all elements from the set?a) clear()b) update()c) remove()ANS: clear()

3. On the palette under which selection will you find a Button?a) User Interfaceb) sensorsc) LayoutANS: User Interface

II. SHORT ANSWER TYPE QUESTIONS

1. Steps to start a new project in App Inventor:

   • Open App Inventor and sign in with your Google account.

   • Click on "Create Apps!" and select "Start a New Project".

   • Enter a project name (e.g., "MyFirstApp") without spaces.

2. Open the Designer Window:

   • Drag and drop components (Buttons, Labels, TextBoxes) onto the screen.

Page 2: Continuing Short Answer Questions

4. Switch to the Blocks Editor:

   • Click on the "Blocks" button.

   • Use the Blocks Editor to add logic using drag-and-drop code blocks.

5. Test Your App:

   • Using Emulator: Connect via Emulator.

   • Using Phone: Install MIT AI2 Companion app and connect via Wi-Fi or USB.

6. Save and Export Your App:

   • Click Build > App (APK) to generate the app.

   • Download and install on your Android device.

III. LONG ANSWER TYPE QUESTIONS

1. Arduino Components and Their Uses:

   • Arduino Controller: A microcontroller board like Arduino Uno.

   • Jumper Wires: Used to make connections.

   • Resistors: Limit current flow to protect components like LEDs.

Page 3: Arduino Functions and Programming

2. setup() and loop() Functions in Arduino:

   • setup() Function: Initializes components once.

     • Example:

       void setup() {
           pinMode(13, OUTPUT);
       }

   • loop() Function: Executes main logic continuously.

     • Example:

       void loop() {
           digitalWrite(13, HIGH);
           delay(1000);
           digitalWrite(13, LOW);
           delay(1000);
       }

3. Program to display odd numbers from 51 to 61 using loops:

   • For Loop:

     print("Odd numbers from 51 to 61 using for loop:")
     for i in range(51, 62, 2):
         print(i)

   • While Loop:

     print("Odd numbers from 51 to 61 using while loop:")
     i = 51
     while i <= 61:
         print(i)
         i += 2

Page 4: Sets in Python

4. Define set and its operations:

   • A set is an unordered collection of unique elements, used for storing multiple values without duplicates.

   • Creating a set:

     my_set = {1, 2, 3, 4, 5}

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