Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 628 · 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 the microcontroller do? (a) stores data online (b) reads values, decides (c) carries the data (d) acts on a command
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a fitness band with app (d) a plain table fan
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
6. 6.🔢 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
7. 7.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) cloud server (d) actuator
8. 8.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi weather station (d) a pencil sharpener
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a battery torch
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
12. 12.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a smart energy meter (d) a plain table fan
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
15. 15.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
16. 16.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) microcontroller
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
18. 18.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a battery torch
19. 19.🔍 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 doorbell camera
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 acts on a command? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
22. 22.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a wind-up clock (d) a battery torch
23. 23.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) phone app (d) microcontroller
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
26. 26.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
28. 28.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
36. 36.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a plain wall switch (d) a wind-up clock
37. 37.🔢 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 board reads it (d) the app shows it
38. 38.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
40. 40.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?

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