Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 9 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
3. 3.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi smart plug (d) a plain wall switch
4. 4.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a plain table fan (d) a battery torch
5. 5.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 140 readings take?
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
13. 13.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) microcontroller
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) an app-controlled bulb (d) a smart energy meter
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
19. 19.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) Wi-Fi (d) microcontroller
22. 22.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
23. 23.What does the cloud server do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
24. 24.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) microcontroller (d) sensor
25. 25.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
26. 26.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) carries the data (d) stores data online
27. 27.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
28. 28.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) measures the real world (d) reads values, decides
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
31. 31.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a fitness band with app
32. 32.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
34. 34.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) phone app (d) actuator
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
36. 36.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi doorbell camera
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device

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