Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 220 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
2. 2.What does the phone app do? (a) measures the real world (b) carries the data (c) acts on a command (d) shows data to you
3. 3.What does the microcontroller do? (a) stores data online (b) carries the data (c) measures the real world (d) reads values, decides
4. 4.🔢 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
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a paper calendar (c) an app-controlled bulb (d) a plain table fan
7. 7.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) phone app (c) actuator (d) cloud server
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a fitness band with app (d) an app-controlled bulb
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
11. 11.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
14. 14.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a wind-up clock (d) a fitness band with app
15. 15.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a fitness band with app (d) a plain wall switch
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
20. 20.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
21. 21.What does the cloud server do? (a) measures the real world (b) shows data to you (c) carries the data (d) stores data online
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
23. 23.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a paper calendar (d) a battery torch
24. 24.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a battery torch (d) a smart energy meter
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a plain wall switch
26. 26.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a battery torch (d) a Wi-Fi smart plug
28. 28.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) actuator (d) phone app
29. 29.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a Wi-Fi doorbell camera
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
31. 31.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
33. 33.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
37. 37.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?

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