Robotics Camp Day 5 Assessment

What is the main function of an ultrasonic sensor?

• To play music using radio waves

• To measure weight using magnetic waves

• To detect temperature using infrared waves

• To measure distance using ultrasonic waves

Which of the following is not a type of sensor?

• camera

• microphone

• banana

• thermometer

How does an ultrasonic sensor measure distance?

• By detecting the temperature of the object

• By analyzing the color of the object

• By using radio waves to measure the distance

• By emitting sound waves and calculating the time it takes for the waves to bounce back

Which of the following is a common application of sensors?

• Musical instruments

• Automotive systems

• Gardening tools

• Cooking recipes

What is the purpose of a motion sensor?

• To cook food

• To measure temperature

• To play music

• To detect movement

Which of the following C++ data types is used to represent floating-point numbers?

• Char

• bool

• float

• int

In Arduino programming, what is the purpose of the trigger and echo pins when working with an ultrasonic sensor?

• Trigger pin sends out ultrasonic waves, and echo pin receives the reflected waves.

• Trigger pin receives ultrasonic waves, and echo pin sends out the reflected waves.

• Trigger pin sends and receives ultrasonic waves simultaneously.

• Trigger and echo pins are interchangeable, and their roles can be switched dynamically.

In Arduino programming, what is the purpose of the Serial.print function?

• To print text messages on the LCD display.

• To send data to the Serial Monitor for debugging and monitoring.

• To activate and control multiple servos simultaneously.

• To toggle the state of digital pins.

What type of sensors convert the environmental input into discrete digital signals that are transmitted in a binary format (1s and 0s)

• Analog sensors

• Digital Sensors

• capacitors

• resistors

To calculate the distance using ultrasonic sensor, which of the below formula is used?

• distance = speed*time

• distance = (.0343*duration)/2

• distance = duration

• distance = speed