Lesson 7 Quiz: Sensors and Analog Input with Arduino

Question 1: What does a sensor do?

What is the main job of a sensor in an Arduino project?

A) It stores programs forever B) It measures something and sends information to Arduino C) It only turns LEDs on D) It replaces the need for code

Question 2: Digital vs Analog

Which statement best describes analog input?

A) It can only be HIGH or LOW B) It can change through many values C) It only works with buttons D) It does not need any wires

Question 3: Analog Pins

Which pin is the correct kind of pin to use with analogRead() for a beginner sensor lesson?

A) Pin 13 B) Pin 8 C) A0 D) GND

Question 4: Understanding `analogRead()`

What does analogRead(A0) do?

A) It turns pin A0 on B) It measures the input value on analog pin A0 C) It sends text to the Serial Monitor D) It changes A0 into an output pin

Question 5: Sensor Range

In this lesson, what range of values does Arduino usually read from an analog sensor?

A) 0 to 1 B) 0 to 5 C) 0 to 255 D) 0 to 1023

Question 6: Potentiometer Wiring

In the lesson's potentiometer setup, where does the middle pin connect?

A) To GND B) To pin 8 C) To A0 D) To the LED long leg

Question 7: Why Use the Serial Monitor?

Why is the Serial Monitor useful when testing a sensor?

A) It makes the sensor more accurate B) It lets you see the changing values Arduino is reading C) It removes the need for analogRead() D) It converts analog signals into motors

Question 8: Code Analysis

What does this line do?
Serial.println(sensorValue);

A) It prints the sensor value to the Serial Monitor B) It turns the sensor off C) It changes the wiring automatically D) It sets the sensor value equal to zero

Question 9: Reading the Pattern

Explain what you would expect to happen to the numbers in the Serial Monitor as you slowly turn a potentiometer knob from one end to the other.

Question 10: Simple Sensor Program

Describe a simple Arduino program that reads a sensor. What sensor would you use, what pin would it connect to, and what would the program print or do?

Lesson 7 Quiz: Sensors and Analog Input with Arduino

Quiz Instructions

Student Information

Question 1: What does a sensor do?

Question 2: Digital vs Analog

Question 3: Analog Pins

Question 4: Understanding `analogRead()`

Question 5: Sensor Range

Question 6: Potentiometer Wiring

Question 7: Why Use the Serial Monitor?

Question 8: Code Analysis

Question 9: Reading the Pattern

Question 10: Simple Sensor Program

Your Quiz Results

Lesson 7 Quiz: Sensors and Analog Input with Arduino

Quiz Instructions

Student Information

Question 1: What does a sensor do?

Question 2: Digital vs Analog

Question 3: Analog Pins

Question 4: Understanding analogRead()

Question 5: Sensor Range

Question 6: Potentiometer Wiring

Question 7: Why Use the Serial Monitor?

Question 8: Code Analysis

Question 9: Reading the Pattern

Question 10: Simple Sensor Program

Your Quiz Results

Question 4: Understanding `analogRead()`