Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 234 · 40 questions

Remember (Sense, send, store, show): IoT device = an everyday thing that shares data over the internet (usually Wi-Fi and an app). Data flow: sensor → board → Wi-Fi → cloud → app (and commands back to an actuator). Readings sent = total time ÷ time between readings, in the same units.

1. 1.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
3. 3.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
4. 4.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
7. 7.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) cloud server (d) phone app
8. 8.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a wind-up clock
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
12. 12.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) microcontroller
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
14. 14.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a battery torch (d) a plain table fan
15. 15.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
17. 17.Which of these is not an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
19. 19.What does the sensor do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
22. 22.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) actuator (d) cloud server
23. 23.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
30. 30.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) actuator
31. 31.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) an app-controlled bulb
32. 32.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
33. 33.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
34. 34.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
36. 36.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) reads values, decides
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi smart plug
38. 38.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?

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