What is Raspberry Pi - Interactive Quiz & Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print the name of the device.

Raspberry Pi

device_name = "[1]"
print(device_name)

Drag options to blanks, or click blank then click option'

ARaspberry Pi

BArduino

CMicrobit

DBeagleBone

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing other small computers like Arduino or Microbit.

The Raspberry Pi is a small, affordable computer used for learning programming and electronics.

2fill in blank

medium

Complete the code to turn on an LED connected to GPIO pin 17.

Raspberry Pi

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(17, GPIO.OUT)
GPIO.output(17, [1])

Drag options to blanks, or click blank then click option'

AGPIO.PWM

BGPIO.LOW

CGPIO.IN

DGPIO.HIGH

Attempts:

3 left

💡 Hint

Common Mistakes

Using GPIO.LOW which turns the LED off.

GPIO.HIGH turns the LED on by sending voltage to the pin.

3fill in blank

hard

Fix the error in the code to read a button press on GPIO pin 18.

Raspberry Pi

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, [1])
if GPIO.input(18):
    print("Button pressed")

Drag options to blanks, or click blank then click option'

AGPIO.OUT

BGPIO.HIGH

CGPIO.IN

DGPIO.LOW

Attempts:

3 left

💡 Hint

Common Mistakes

Setting the pin as output instead of input.

GPIO.IN sets the pin as input to read button presses.

4fill in blank

hard

Fill both blanks to create a dictionary of GPIO pin states for pins 22 and 23.

Raspberry Pi

pin_states = {22: GPIO.[1], 23: GPIO.[2]

Drag options to blanks, or click blank then click option'

AHIGH

BLOW

CIN

DOUT

Attempts:

3 left

💡 Hint

Common Mistakes

Using IN or OUT which are pin modes, not states.

GPIO.HIGH and GPIO.LOW represent the on/off states of pins.

5fill in blank

hard

Fill all three blanks to set up GPIO, turn on pin 24, and clean up.

Raspberry Pi

import RPi.GPIO as GPIO
GPIO.setmode(GPIO.[1])
GPIO.setup(24, GPIO.[2])
GPIO.output(24, GPIO.[3])
GPIO.cleanup()

Drag options to blanks, or click blank then click option'

ABCM

BOUT

CHIGH

DIN

Attempts:

3 left

💡 Hint

Common Mistakes

Using IN instead of OUT for setup or LOW instead of HIGH for output.

BCM sets pin numbering, OUT sets pin as output, HIGH turns pin on.

Practice

1. What is a Raspberry Pi?

easy

A. A small, affordable computer used for learning and projects

B. A type of smartphone

C. A video game console

D. A web browser

Solution

1. Step 1: Understand the definition of Raspberry Pi

   Raspberry Pi is known as a small and affordable computer designed for education and hobby projects.

2. Step 2: Compare options with the definition

   Only A small, affordable computer used for learning and projects matches this description; others describe different devices.

3. Final Answer:

   A small, affordable computer used for learning and projects -> Option A

4. Quick Check:

   Raspberry Pi = Small affordable computer [OK]

Hint: Remember Raspberry Pi is a tiny computer, not a phone [OK]

Common Mistakes:

• Confusing Raspberry Pi with a smartphone
• Thinking it is a gaming console
• Assuming it is software only

2. Which of the following is the correct way to start programming on a Raspberry Pi?

easy

A. Use a web browser to run JavaScript only

B. Use a smartphone app only

C. Connect it to a TV and play games without coding

D. Install Python and write code using a text editor

Solution

1. Step 1: Identify programming methods on Raspberry Pi

   Raspberry Pi supports programming languages like Python, which can be written using text editors.

2. Step 2: Evaluate options for programming start

   Install Python and write code using a text editor correctly describes installing Python and coding. Other options do not describe programming properly.

3. Final Answer:

   Install Python and write code using a text editor -> Option D

4. Quick Check:

   Programming on Raspberry Pi = Python + text editor [OK]

Hint: Programming starts with Python and editor, not apps alone [OK]

Common Mistakes:

• Thinking Raspberry Pi programming is only through apps
• Confusing playing games with programming
• Assuming only web languages work

3. What will happen if you run this Python code on a Raspberry Pi?

print('Hello from Raspberry Pi!')

medium

A. It will display the message: Hello from Raspberry Pi!

B. It will cause a syntax error

C. It will do nothing

D. It will crash the Raspberry Pi

Solution

1. Step 1: Understand the Python print function

   The print function outputs the text inside quotes to the screen.

2. Step 2: Predict the output of the code

   The code prints exactly 'Hello from Raspberry Pi!' to the screen without errors.

3. Final Answer:

   It will display the message: Hello from Raspberry Pi! -> Option A

4. Quick Check:

   print('text') outputs text [OK]

Hint: print() shows text on screen, no errors here [OK]

Common Mistakes:

• Expecting an error from correct print syntax
• Thinking code does nothing
• Assuming hardware crash from simple print

4. You wrote this Python code on your Raspberry Pi:

prit('Welcome to Raspberry Pi')

What is the problem?

medium

A. The string is missing quotes

B. The function name is misspelled; it should be print

C. Raspberry Pi does not support print function

D. The code is correct and will run fine

Solution

1. Step 1: Check the function name spelling

   The code uses 'prit' instead of 'print', which is a typo causing an error.

2. Step 2: Confirm the impact of the typo

   Python will raise a NameError because 'prit' is not defined.

3. Final Answer:

   The function name is misspelled; it should be print -> Option B

4. Quick Check:

   Misspelled function name causes error [OK]

Hint: Check spelling of function names carefully [OK]

Common Mistakes:

• Ignoring typos in function names
• Thinking Raspberry Pi lacks print function
• Assuming missing quotes cause this error

5. You want to control an LED light connected to your Raspberry Pi using Python. Which approach is best?

hard

A. Use a web browser to turn the LED on and off

B. Write Python code that only prints messages without hardware control

C. Use a Python library like RPi.GPIO to control the hardware pins

D. Connect the LED to a smartphone and control it remotely

Solution

1. Step 1: Identify how to control hardware on Raspberry Pi

   Raspberry Pi uses libraries like RPi.GPIO to interact with physical pins and devices like LEDs.

2. Step 2: Evaluate options for controlling an LED

   Only Use a Python library like RPi.GPIO to control the hardware pins describes using a Python library to control hardware pins directly.

3. Final Answer:

   Use a Python library like RPi.GPIO to control the hardware pins -> Option C

4. Quick Check:

   Hardware control = Python + GPIO library [OK]

Hint: Use GPIO library to control hardware pins in Python [OK]

Common Mistakes:

• Thinking printing messages controls hardware
• Assuming web browser can directly control pins
• Confusing smartphone control with Raspberry Pi hardware