Electronics Worksheet: What Is IoT

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

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