Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 232 · 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 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
2. 2.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) cloud server (d) microcontroller
3. 3.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) sensor (d) phone app
4. 4.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
11. 11.What does the actuator do? (a) shows data to you (b) carries the data (c) measures the real world (d) acts on a command
12. 12.🔢 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
13. 13.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
14. 14.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
16. 16.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a battery torch
18. 18.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a smart energy meter
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
21. 21.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a fitness band with app
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔢 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
25. 25.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a paper calendar (d) a plain table fan
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
27. 27.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a pencil sharpener (d) an app-controlled bulb
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
30. 30.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) Wi-Fi (d) cloud server
32. 32.What does the cloud server do? (a) stores data online (b) carries the data (c) measures the real world (d) shows data to you
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
34. 34.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a wind-up clock
37. 37.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
40. 40.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug

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