What is the main function of a sensor?

• To store data

• To emit light

• To detect input and convert it into data

• To process data from computers

What type of sensor requires an external power signal?

• Passive sensor

• Analog sensor

• Digital sensor

• Active sensor

Which sensor does not require external power?

• Digital sensor

• Active sensor

• Passive sensor

• Gyroscope

A sensor that produces a continuous signal is called:

• Digital sensor

• Passive sensor

• Analog sensor

• Magnetic sensor

Which sensor uses pulse width modulation for output?

• Temperature sensor

• Analog sensor

• Digital sensor

• Accelerometer

What device can change screen orientation due to the accelerometer?

• Laptop

• Remote control

• Mobile phone

• Mouse

Which sensor measures acceleration?

• Gyroscope

• Accelerometer

• Ultrasonic

• Touch sensor

Which sensor measures temperature?

• IR Sensor

• Compass

• Thermocouple

• Touch sensor

What kind of sensor uses ultrasonic waves to detect distance?

• Proximity sensor

• Infrared sensor

• Ultrasonic sensor

• Accelerometer

A non-contact sensor that detects objects using infrared radiation is:

• Light sensor

• IR sensor

• Touch sensor

• Gyroscope