Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 715 · 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.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
3. 3.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) measures the real world
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
5. 5.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
6. 6.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
8. 8.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a wind-up clock (d) a paper calendar
9. 9.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a paper calendar (d) a plain table fan
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the app shows it
11. 11.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
16. 16.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
17. 17.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
18. 18.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
19. 19.🔢 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
20. 20.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
21. 21.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a battery torch
23. 23.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
25. 25.🔢 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
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
27. 27.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) carries the data
28. 28.What does the phone app do? (a) acts on a command (b) stores data online (c) carries the data (d) shows data to you
29. 29.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
30. 30.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) carries the data (d) reads values, decides
31. 31.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
34. 34.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) a smart energy meter
35. 35.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a battery torch (d) a Wi-Fi smart plug
36. 36.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a wind-up clock (d) a smart energy meter
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a paper calendar (d) a battery torch
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a fitness band with app (c) a wind-up clock (d) a plain wall switch
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?

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