Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 359 · 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 of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
6. 6.🌐 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
7. 7.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
8. 8.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
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a paper calendar (c) a pencil sharpener (d) a plain table fan
10. 10.What does the actuator do? (a) acts on a command (b) stores data online (c) measures the real world (d) carries the data
11. 11.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi smart plug
12. 12.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
16. 16.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
17. 17.What does the sensor do? (a) carries the data (b) shows data to you (c) measures the real world (d) stores data online
18. 18.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a wind-up clock (d) a battery torch
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
20. 20.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) cloud server (d) Wi-Fi
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi smart plug (d) a pencil sharpener
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
26. 26.🏠 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
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
28. 28.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) cloud server (d) sensor
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
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 sensor measures (d) the app shows it
34. 34.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) an app-controlled bulb (d) a battery torch
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
38. 38.🔢 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
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
40. 40.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a plain wall switch

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