Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 619 · 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.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
2. 2.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a paper calendar (d) a plain wall switch
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
4. 4.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
5. 5.What does the sensor do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
6. 6.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
7. 7.Which of these is not an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
9. 9.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
10. 10.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
12. 12.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
13. 13.What does the actuator do? (a) shows data to you (b) acts on a command (c) carries the data (d) measures the real world
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain wall switch (d) a plain table fan
16. 16.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
17. 17.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
18. 18.What does the cloud server do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
21. 21.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a fitness band with app (d) a wind-up clock
22. 22.🔢 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
23. 23.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a battery torch (d) a plain wall switch
27. 27.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔢 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
29. 29.🌐 A weather station sends one reading every 10 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.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔢 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 board reads it (c) the app shows it (d) the sensor measures
34. 34.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a paper calendar (d) a wind-up clock
35. 35.What does the microcontroller do? (a) stores data online (b) carries the data (c) reads values, decides (d) measures the real world
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) an app-controlled bulb (d) a plain wall switch
37. 37.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch

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