Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 738 · 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 paper calendar an IoT device? (a) an IoT device (b) not an IoT device
2. 2.What does the cloud server do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
4. 4.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) a Wi-Fi smart plug (d) an app-controlled bulb
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
6. 6.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
7. 7.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a battery torch (d) a wind-up clock
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
9. 9.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
10. 10.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a wind-up clock (d) a fitness band with app
12. 12.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
15. 15.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
17. 17.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
19. 19.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) microcontroller
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
22. 22.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a plain wall switch
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
25. 25.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
28. 28.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) measures the real world (d) carries the data
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
33. 33.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) phone app (d) sensor
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
35. 35.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) an app-controlled bulb (d) a fitness band with app
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a pencil sharpener (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?

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