Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 274 · 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.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a battery torch (d) a plain wall switch
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
3. 3.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) stores data online
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
5. 5.What does the sensor do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
7. 7.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
9. 9.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
11. 11.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
14. 14.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
15. 15.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a paper calendar (d) a pencil sharpener
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
21. 21.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a pencil sharpener
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
23. 23.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
24. 24.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
25. 25.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) shows data to you (d) stores data online
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
28. 28.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
31. 31.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a fitness band with app (d) an app-controlled bulb
33. 33.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a wind-up clock (d) a pencil sharpener
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
39. 39.What does the microcontroller do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a smart energy meter (d) a fitness band with app

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