Lesson 6 Quiz: Functions with Arduino

Test your understanding of defining, calling, and using simple functions in Arduino code

32-Lesson Course • Semester 1

Quiz Instructions

This quiz covers material from Lesson 6: Functions with Arduino
Answer all questions to the best of your ability
Your responses will be emailed to your instructor for review
Take your time and think carefully about each answer
You can review the lesson material if needed before submitting

Student Information

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Question 1: What is a function?

What is a function in Arduino programming?

A) A special wire on the Arduino board B) A named block of code that performs a job C) A kind of resistor D) A value stored in memory

Question 2: Built-In Functions

Which two functions are already part of every basic Arduino sketch?

A) begin() and stop() B) setup() and loop() C) start() and run() D) input() and output()

Question 3: Calling a Function

Which line correctly calls a function named printWelcome?

A) printWelcome; B) printWelcome() C) printWelcome(); D) call printWelcome();

Question 4: Understanding `void`

What does void usually mean at the beginning of a beginner function definition?

A) The function runs forever B) The function uses decimal numbers C) The function does a job but does not return a value D) The function can only be used inside loop()

Question 5: Parameters

What is a parameter in a function like void printResult(int answer)?

A) A comment explaining the code B) A value the function receives when it is called C) A built-in Arduino pin mode D) A special type of loop

Question 6: Reading a Function Call

If the code says showTemperatureConversion(25.0);, what value is being sent into the function?

A) 5.0 B) 20.0 C) 25.0 D) 32.0

Question 7: Why Use Functions?

Which is the best reason to use functions in a beginner Arduino program?

A) They make wires connect automatically B) They replace all variables C) They help organize and reuse repeated code D) They remove the need for setup()

Question 8: Code Analysis

What does this function do?
void printResult(int answer) { Serial.println(answer); }

A) It reads a button input B) It prints the value sent into it C) It changes the Arduino voltage D) It creates a new loop

Question 9: Code Analysis

Explain what happens when showAddition(7, 5); calls a function that adds the two numbers and prints the answer.

Question 10: Function-Based Arduino Program

Describe a simple Arduino program that uses functions. What functions did you make, what values or hardware did they use, and what did the program do?

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