Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 850 · 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.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) by shouting (d) through a candle
2. 2.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
4. 4.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a pencil sharpener (d) an app-controlled bulb
5. 5.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
7. 7.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
11. 11.Which of these is not an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi weather station (d) a fitness band with app
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
13. 13.Which of these is not an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
14. 14.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a fitness band with app (d) a Wi-Fi smart plug
15. 15.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
17. 17.What does the phone app do? (a) measures the real world (b) shows data to you (c) acts on a command (d) reads values, decides
18. 18.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a battery torch (d) a wind-up clock
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
20. 20.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
24. 24.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
26. 26.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a battery torch (d) a fitness band with app
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
30. 30.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a battery torch
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
32. 32.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain table fan
33. 33.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
35. 35.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a smart energy meter
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
39. 39.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk

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