I_am_sharing__GRADE_7_CBSE_WORKSHEET_edited__with_you

Which function repeats consecutively until Arduino is turned off?a) Loop()b) Setup()c) delay()ANS: Loop()
Which function is used to remove all elements from the set?a) clear()b) update()c) remove()ANS: clear()
On the palette under which selection will you find a Button?a) User Interfaceb) sensorsc) LayoutANS: User Interface

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.
Open the Designer Window:
- Drag and drop components (Buttons, Labels, TextBoxes) onto the screen.

Switch to the Blocks Editor:
- Click on the "Blocks" button.
- Use the Blocks Editor to add logic using drag-and-drop code blocks.
Test Your App:
- Using Emulator: Connect via Emulator.
- Using Phone: Install MIT AI2 Companion app and connect via Wi-Fi or USB.
Save and Export Your App:
- Click Build > App (APK) to generate the app.
- Download and install on your Android device.

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.

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);
}
```

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

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}
```