Electronics Worksheet: What Is IoT

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

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