Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 548 · 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 wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
3. 3.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) an app-controlled bulb (d) a pencil sharpener
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
5. 5.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
6. 6.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
8. 8.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a wind-up clock (d) a battery torch
11. 11.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
17. 17.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
18. 18.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) acts on a command (d) reads values, decides
19. 19.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
22. 22.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a fitness band with app
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
24. 24.What does the actuator do? (a) carries the data (b) acts on a command (c) measures the real world (d) shows data to you
25. 25.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a plain wall switch
26. 26.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) measures the real world
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
28. 28.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain table fan
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
30. 30.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
32. 32.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) sensor (d) microcontroller
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
37. 37.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a pencil sharpener (d) a smart energy meter
38. 38.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
40. 40.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) phone app

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