IoT – IR Sensor Quiz 1. What does IR stand for? Internet Radar Infrared Internal Radiator Inverted Response 2. What can an IR sensor detect? Internet Radar Infrared Internal Radiator Inverted Response 3. Which of the following is a common use of IR sensors? Internet Radar Infrared Internal Radiator Inverted Response 4. IR sensors are often used in which type of electronic device? Smartphones Remote controls Electric cars Refrigerators 5. How does an IR sensor work? It detects the color of objects It senses temperature or heat It measures sound waves It detects water levels Time's up
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