Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 570 · 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.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
2. 2.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
5. 5.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain wall switch
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
7. 7.What does the actuator do? (a) carries the data (b) acts on a command (c) measures the real world (d) stores data online
8. 8.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
9. 9.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a fitness band with app (d) a wind-up clock
10. 10.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
11. 11.🌐 In an IoT system, which part acts on a command? (a) phone app (b) sensor (c) actuator (d) cloud server
12. 12.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain table fan
13. 13.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
16. 16.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
17. 17.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a candle in a jar (d) a printed map
18. 18.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a battery torch
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
20. 20.What does the phone app do? (a) stores data online (b) acts on a command (c) shows data to you (d) reads values, decides
21. 21.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) microcontroller (d) actuator
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
23. 23.Which of these is an IoT device? (a) a pencil sharpener (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a plain wall switch
24. 24.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
25. 25.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
27. 27.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a smart energy meter
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
29. 29.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
30. 30.Which of these is an IoT device? (a) a smart energy meter (b) a paper calendar (c) a plain table fan (d) a pencil sharpener
31. 31.🔢 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 board reads it (d) the sensor measures
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
34. 34.Which of these is an IoT device? (a) a plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
35. 35.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a paper calendar (d) a Wi-Fi weather station
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
37. 37.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
40. 40.What does the cloud server do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world

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