Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 107 · 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 the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a pencil sharpener (d) a fitness band with app
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
3. 3.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🔢 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
5. 5.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔢 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
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
9. 9.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a wind-up clock
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
18. 18.What does the cloud server do? (a) measures the real world (b) acts on a command (c) shows data to you (d) stores data online
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
20. 20.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a battery torch (d) a plain table fan
22. 22.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) cloud server (d) microcontroller
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
24. 24.🔢 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
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
26. 26.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a pencil sharpener (d) a paper calendar
28. 28.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) microcontroller (d) cloud server
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain wall switch (d) a fitness band with app
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
34. 34.What does the sensor do? (a) stores data online (b) acts on a command (c) shows data to you (d) measures the real world
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 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
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
39. 39.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a pencil sharpener (d) a smart energy meter
40. 40.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device

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