Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 442 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
2. 2.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
5. 5.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) Wi-Fi (d) phone app
6. 6.What does the sensor do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
8. 8.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a Wi-Fi weather station
10. 10.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) an app-controlled bulb (d) a battery torch
11. 11.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a plain table fan (d) a paper calendar
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
13. 13.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
17. 17.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) stores data online (d) shows data to you
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a battery torch (d) a paper calendar
21. 21.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
22. 22.What does the actuator do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
23. 23.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
24. 24.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
25. 25.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
27. 27.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) phone app
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
29. 29.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a wind-up clock
30. 30.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
31. 31.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain wall switch (d) a Wi-Fi doorbell camera
33. 33.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a wind-up clock (d) a pencil sharpener
34. 34.🔢 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) the board reads it (d) it is sent by Wi-Fi
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
36. 36.What does the cloud server do? (a) stores data online (b) shows data to you (c) measures the real world (d) carries the data
37. 37.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
38. 38.What does the phone app do? (a) shows data to you (b) carries the data (c) measures the real world (d) stores data online
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
40. 40.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator

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