Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 152 · 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.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a battery torch
3. 3.What does the phone app do? (a) acts on a command (b) shows data to you (c) stores data online (d) carries the data
4. 4.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a battery torch
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain wall switch
6. 6.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a fitness band with app (d) a paper calendar
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
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.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
12. 12.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
14. 14.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
15. 15.What does the cloud server do? (a) measures the real world (b) carries the data (c) shows data to you (d) stores data online
16. 16.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) stores data online (d) shows data to you
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
18. 18.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Internet of Things (d) Inside of Toys
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
20. 20.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
21. 21.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
24. 24.What does the actuator do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
25. 25.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
26. 26.🏠 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
27. 27.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
29. 29.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) actuator (d) cloud server
30. 30.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) actuator
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
32. 32.🔢 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 app shows it (d) the board reads it
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
35. 35.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
36. 36.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a battery torch
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a fitness band with app (d) a wind-up clock
39. 39.🔢 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 cloud stores it (c) the sensor measures (d) the app shows it
40. 40.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) a plain wall switch (d) a smart energy meter

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