Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 665 · 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) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi weather station
2. 2.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a plain table fan (d) a wind-up clock
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
4. 4.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi smart plug
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a plain wall switch (d) a fitness band with app
7. 7.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🔢 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) it is sent by Wi-Fi
10. 10.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) stores data online
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
12. 12.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
15. 15.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) microcontroller (d) phone app
16. 16.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) over Wi-Fi (d) by post
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a fitness band with app
19. 19.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
23. 23.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) microcontroller
24. 24.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
27. 27.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi weather station (d) a wind-up clock
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
33. 33.What does the phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
36. 36.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
38. 38.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain table fan
39. 39.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🔢 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

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