WorksheetsRevision Arduino
Total questions: 20
Worksheet time: 10mins
What is the mainboard we use in Arduino projects?
a) Raspberry Pi
b) Arduino Uno
c) Micro:bit
d) Breadboard
What is the USB port on the Arduino used for?
a) To charge the Arduino
b) To send code from the computer to the Arduino
c) To connect sensors
d) To power external motors
What is the power jack used for?
a) To connect a battery (7V–12V)
b) To store code
c) To program the Arduino
d) To make sounds
What is the small chip on the Arduino board called, and what does it do?
a) Resistor – It limits current
b) Buzzer – It makes sound
c) Microcontroller – It stores code and controls the circuit
d) Sensor – It detects light
What are header pins used for on the Arduino?
a) To store power
b) To connect external components
c) To hold the board in place
d) To program the Arduino
What are digital pins used for?
a) To store data
b) To read and send digital signals (0 or 1)
c) To power LEDs
d) To make sound
What are analog pins used for?
a) To read a range of values (0-1023) from sensors
b) To send digital signals
c) To store code
d) To make LEDs blink
What do power pins (5V, 3.3V, GND) do?
a) Control LED brightness
b) Provide power to components
c) Store information
d) Detect sound
What is the difference between digital and analog signals?
a) Digital is always 0 or 1, while analog can be a range of values
b) Analog is faster than digital
c) Digital is used for power, and analog is for programming
d) They are the same
How do we connect components without soldering?
a) Using a breadboard
b) Using glue
c) Using a screwdriver
d) By taping wires together
What is the function of a resistor?
a) To make sound
b) To limit electrical current and protect components
c) To store energy
d) To power the Arduino
What is an LED, and what does it do?
a) A type of sensor that detects movement
b) A small motor that makes sound
c) A light that only works with high voltage
d) A light that emits one color and only works in one direction
What are the two legs of an LED called?
a) Positive and Negative
b) Left and Right
c) Anode and Cathode
d) Input and Output
What is an RGB LED, and how is it different from a normal LED?
a) It produces sound
b) It can display multiple colors using red, green, and blue
c) It is smaller than a normal LED
d) It only works with batteries
What is a buzzer used for in an Arduino project?
a) To produce sound
b) To power LEDs
c) To store data
d) To connect sensors
What does a potentiometer do?
a) Turns lights on and off
b) Adjusts resistance by rotating a knob
c) Stores electrical charge
d) Sends digital signals
What does a servo motor do?
a) Moves continuously like a fan
b) Moves to a specific angle (0°–180°) and holds position
c) Measures temperature
d) Produces sound
What is an IR receiver sensor used for?
a) Detects infrared signals from a remote control
b) Makes sounds
c) Measures temperature
d) Stores power
Which of the following sensors can detect changes in the environment?
a) Photocell (Light Sensor)
b) Temperature Sensor
c) Both A and B
d) None of the above
What is a motor driver shield used for?
a) To power LEDs
b) To control motors with the Arduino
c) To store information
d) To detect light
