Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 108 · 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 fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
2. 2.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a fitness band with app (d) an app-controlled bulb
3. 3.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
5. 5.🏠 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
6. 6.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a plain table fan (d) a pencil sharpener
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
8. 8.What does the cloud server do? (a) carries the data (b) stores data online (c) shows data to you (d) reads values, decides
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a smart energy meter (d) a wind-up clock
12. 12.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
13. 13.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) microcontroller (d) sensor
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
15. 15.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
16. 16.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain table fan
17. 17.🔢 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
18. 18.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a battery torch
19. 19.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a wind-up clock (d) an app-controlled bulb
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a wind-up clock (c) a plain table fan (d) a paper calendar
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi weather station
26. 26.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) cloud server (d) sensor
27. 27.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
28. 28.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) microcontroller (d) actuator
29. 29.What does the phone app do? (a) measures the real world (b) acts on a command (c) shows data to you (d) carries the data
30. 30.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) microcontroller
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
33. 33.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
36. 36.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a paper calendar
37. 37.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a plain wall switch (d) a plain table fan
38. 38.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
39. 39.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?

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