Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 502 · 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 plain wall switch (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi smart plug
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
4. 4.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
6. 6.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
7. 7.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) cloud server (d) sensor
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
10. 10.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi weather station (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
13. 13.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
17. 17.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) cloud server (d) sensor
18. 18.What does the phone app do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
19. 19.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
20. 20.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) an app-controlled bulb
21. 21.Which of these is an IoT device? (a) a smart energy meter (b) a plain table fan (c) a pencil sharpener (d) a battery torch
22. 22.What does the cloud server do? (a) measures the real world (b) acts on a command (c) carries the data (d) stores data online
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
24. 24.🔢 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
25. 25.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) Wi-Fi
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi weather station
27. 27.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
28. 28.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
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.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) phone app (d) actuator
31. 31.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
33. 33.🔢 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
34. 34.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
36. 36.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
38. 38.🔢 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 sensor measures (d) the cloud stores it
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi smart plug
40. 40.What does the sensor do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides

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