Checkpoint 2 Assessment 2 - 12G

Identify the flowchart symbol represented below.

• Decision

• Start / Stop

• Process

• Input / Output

 Refer to the image shown below. Which of the following Arduino commands is used to initialise pin ‘7’ as an OUTPUT?

• digitalWrite(7, OUTPUT);

• pinMode(7, HIGH);

• pinMode(7, OUTPUT);

• analogRead(7);

How can we write (A = A + 1) in Arduino syntax?

• A++

• A+=B

• A--

• A*=B

Which of the following is a digital input component?

• Servo Motor

• Pushbutton

• Potentiometer

• Buzzer

Which of the following Arduino functions is used to generate a PWM signal?

• analogRead();

• digitalWrite();

• analogWrite();

• digitalRead();

Refer to the Arduino code shown below and identify the error in the given code for changing the brightness of an LED.

• Missing semicolon before the void setup() function

• No change in the brightness of the LED

• Extra curly brackets added in the void loop() function

• Variable ‘i’ is not declared

What do we call an electric device that emits infrared radiation to detect certain characteristics of the surrounding environment?

• IR sensor

• Ultrasonic sensor

• DC motor

• L298N motor driver

What is the method to describe the designed code using English statement?

• Pseudocode

• Third Level Language

• Seudocode

• First Level Language

Which of the following is a disadvantage of pseudocode?

• Makes it easier to detect and fix errors in the code

• Easy to understand, even for nonprogrammers

• Allows the designer to focus on main logic, not on the syntax

• Can be time consuming to produce

Arduino generates Analogue signals using PWM, what is PWM?

• Pulse Width Modulation

• Pulse Width Mobile

• Pause Wild Mobile

• Pause Wild Modulation