Grade 3

Which of the following components is used to control electrical devices in a smart machine?

• a) Resistor

• b) Microcontroller

• c) Battery

• d) Capacitor

What software do we use to program an Arduino with block-based coding?

• a) Scratch

• b) Pictoblox

• c) Python

• d) MATLAB

What is the purpose of the digital pin in Arduino coding?

• a) To set the speed of the program

• b) To turn the LED on or off

• c) To generate electricity

• d) To upload the code to Arduino

What is the function of the “forever” block in Pictoblox?

• • a) To stop the program after a certain time

• b)To repeat the code continuously

• c) To turn off the Arduino

• d) To make the code run faster

What is a microcontroller primarily used for in electronic projects?

• a) Storing power

• b) Processing and controlling devices

• c) Generating sound

• d) Measuring temperature

Which of these statements about Arduino is correct?

• a) It generates electricity

• b) It controls circuits based on code

• d) It is used to only measure temperature

In a typical Arduino project, what does setting a pin to "HIGH" do?

• a) Turns off the device

• b) Turns on the connected device

• d) Increases the speed of the device

Why do we need coding in an Arduino project?

• a) To build physical circuits

• b) To give instructions to Arduino for controlling devices

• c) To generate power for the circuit

• d) To connect the Arduino to the internet

Which of the following components would you use to create sound in an Arduino project?

• a) LED

• b) Resistor

• c) Buzzer

• d) Potentiometer

What does the "wait" block do in a Pictoblox Arduino code?

• a) It stops the program from running.

• b) It pauses the code for a specific amount of time.

• c) It speeds up the code.

• d) It restarts the Arduino.