Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 937 · 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.🔢 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
2. 2.🏠 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
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain wall switch
4. 4.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a plain wall switch (d) a plain table fan
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
8. 8.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
11. 11.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) microcontroller (d) cloud server
12. 12.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a paper calendar (d) a plain wall switch
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
17. 17.What does the phone app do? (a) stores data online (b) carries the data (c) acts on a command (d) shows data to you
18. 18.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a smart energy meter
19. 19.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
20. 20.What does the cloud server do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) stores data online
21. 21.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
22. 22.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
24. 24.What does the sensor do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a fitness band with app (c) a pencil sharpener (d) a plain wall switch
26. 26.What does the microcontroller do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
27. 27.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a battery torch
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
30. 30.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
31. 31.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
34. 34.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
35. 35.🌐 In an IoT system, which part acts on a command? (a) sensor (b) microcontroller (c) actuator (d) cloud server
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a plain table fan (d) a smart energy meter
37. 37.🌐 In an IoT system, which part stores data online? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
39. 39.🔢 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
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?

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