Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 643 · 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 Wi-Fi smart plug (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
2. 2.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) microcontroller (d) sensor
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
4. 4.What does the sensor do? (a) reads values, decides (b) acts on a command (c) stores data online (d) measures the real world
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) an app-controlled bulb (d) a plain wall switch
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
7. 7.What does the phone app do? (a) carries the data (b) shows data to you (c) acts on a command (d) measures the real world
8. 8.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain table fan (d) a fitness band with app
9. 9.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a battery torch (d) a wind-up clock
10. 10.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi smart plug
11. 11.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
12. 12.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) sensor (d) phone app
13. 13.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi weather station
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
16. 16.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
17. 17.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
18. 18.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
19. 19.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
20. 20.What does the microcontroller do? (a) stores data online (b) shows data to you (c) carries the data (d) reads values, decides
21. 21.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
24. 24.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
27. 27.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a smart energy meter (d) an app-controlled bulb
28. 28.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a plain table fan (d) a fitness band with app
29. 29.🔢 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
30. 30.🔢 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
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the cloud stores it
34. 34.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a wind-up clock
35. 35.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
37. 37.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) a Wi-Fi weather station
39. 39.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a wind-up clock (d) a smart energy meter
40. 40.🔢 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

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