Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 369 · 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.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) an app-controlled bulb
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
5. 5.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
6. 6.What does the microcontroller do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
7. 7.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
9. 9.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
11. 11.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
13. 13.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) sensor (c) actuator (d) microcontroller
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a paper calendar (d) an app-controlled bulb
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a pencil sharpener (d) a Wi-Fi doorbell camera
18. 18.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
22. 22.🔢 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
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
25. 25.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) phone app (d) sensor
26. 26.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
28. 28.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
29. 29.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
30. 30.What does the phone app do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
33. 33.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a paper calendar (d) a Wi-Fi smart plug
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
40. 40.🔢 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

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