IT Grade 9 FTQuiz2 - Sensors and Arduino

What does an ultrasonic sensor measure?

• Temperature

• Distance

• Pressure

• Humidity

Which sensor is used to measure the water content in soil?

• PIR Sensor

• Ultrasonic Sensor

• Soil Moisture Sensor

• Infrared Sensor

What type of sensor emits light to sense objects?

• Infrared Sensor

• Ultrasonic Sensor

• Humidity Sensor

• Soil Moisture Sensor

What is the primary function of a PIR sensor?

• Detect humidity

• Detect sound waves

• Measure temperature

• Measure infrared light

What does a humidity sensor measure?

• Pressure exerted on an object

• Speed of an object

• Distance to an object

• Concentration of water in the air

Which variable does a sound sensor detect?

• Light

• Pressure

• Sound waves

• Flow rates

What is the name of this sensor?

• PIR Sensor

• Infrared Sensor

• Ultrasonic Sensor

• DH11 Humidity and Temperature Sensor

What is the name of this sensor?

• PIR Sensor

• Infrared Sensor

• Ultrasonic Sensor

• DH11 Humidity and Temperature Sensor

What is the name of this sensor?

• PIR Sensor

• Infrared Sensor

• Soil Moisture Sensor

• DH11 Humidity and Temperature Sensor

What is the name of this sensor?

• PIR Sensor

• Infrared Sensor

• Soil Moisture Sensor

• Ultrasonic Sensor