Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 584 · 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 a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
2. 2.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
4. 4.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a battery torch
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
9. 9.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
11. 11.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) Wi-Fi (c) cloud server (d) phone app
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
15. 15.What does the sensor do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a plain table fan (d) a wind-up clock
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
20. 20.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi weather station (d) a wind-up clock
21. 21.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
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 app shows it (c) the sensor measures (d) it is sent by Wi-Fi
25. 25.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
26. 26.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a fitness band with app
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
33. 33.What does the phone app do? (a) acts on a command (b) stores data online (c) shows data to you (d) carries the data
34. 34.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
36. 36.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi smart plug
37. 37.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
39. 39.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the sensor measures

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