Ultrasonic Sonic Sensor Sounds Buzzer & Dims LED Quiz

Which component is used to measure distance in the list provided?

• Arduino

• Breadboard

• Ultrasonic Sensor

• Buzzer

Which component is used to produce sound in the list provided?

• Red LED

• Buzzer

• Ultrasonic Sensor

• Breadboard

Which component is used to connect and organize circuits?

• Arduino

• Breadboard

• Ultrasonic Sensor

• Buzzer

Which component is a microcontroller board used for building digital devices?

• Breadboard

• Ultrasonic Sensor

• Arduino

• Buzzer

How many black wires are listed in the components?

• 1

• 2

• 3

• 4

Which component is used to detect objects by using sound waves?

• Arduino

• Breadboard

• Ultrasonic Sensor

• Buzzer

What is going to happen to the LED when we put our hand in front of the Sensor about 1 inch (~10 cm) away?

• The LED will turn on.

• The LED will turn off.

• The LED will blink slowly.

• The LED will dim.

What is going to happen to the Buzzer when we put our hand in front of the Sensor about 1 inch (~10 cm) away?

• The Buzzer will turn off.

• The LED will turn on.

• The Buzzer will buzz off and on.

• Nothing.

Which component in the circuit is used to limit current?

• Buzzer

• LED

• Resistor

• Capacitor

What mode is the trig pin set to in the setup function?

• INPUT

• OUTPUT

• ANALOG

• DIGITAL