Ultrasonic Range Sensor Dims LED Quiz

What is the main topic of the lesson introduced by Dr. Perez?

• The history of sensors

• The ultrasonic range sensor

• The use of breadboards

• The principles of LED lighting

What is another name used for the ultrasonic range sensor?

• HCSR 04

• LED 01

• Sensor X

• Range Finder 10

What is the purpose of the ultrasonic sensor in this lesson?

• To measure temperature

• To detect motion and dim an LED

• To amplify sound

• To transmit data wirelessly

What are the two components of the ultrasonic range sensor mentioned in the text?

• Trigger and Receiver

• Trigger and Echo

• Signal and Light

• Echo and Light

What does the trigger do in the ultrasonic range sensor?

• It receives the signal.

• It sends a signal.

• It measures temperature.

• It changes the light.

What role does the echo play in the ultrasonic range sensor?

• It sends a signal.

• It changes the light.

• It receives the signal.

• It powers the sensor.

What does the term "ultrasonic" mean?

• Below the range of human hearing

• Within the range of human hearing

• Above the range of human hearing

• At the same frequency as human hearing

What type of sound is described as very high pitched and above our ability to hear?

• Infrasonic

• Ultrasonic

• Subsonic

• Supersonic

Which animals are known to use sonar?

• Dogs

• Cats

• Bats

• Birds

What is the purpose of a sonic sensor?

• To amplify sound

• To detect light

• To send out sound waves

• To measure temperature