Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 572 · 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.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) microcontroller (c) phone app (d) actuator
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
3. 3.What does the cloud server do? (a) acts on a command (b) reads values, decides (c) stores data online (d) measures the real world
4. 4.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
6. 6.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
7. 7.What does the actuator do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
8. 8.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
9. 9.What does the phone app do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain table fan (d) a Wi-Fi weather station
11. 11.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) phone app
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
16. 16.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
19. 19.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
20. 20.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a paper calendar (d) a plain table fan
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
22. 22.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
27. 27.What does the Wi-Fi link do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) carries the data
28. 28.🔢 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) the board reads it (d) it is sent by Wi-Fi
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
34. 34.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
37. 37.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) the cloud stores it
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
39. 39.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not 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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