Electronics Worksheet: What Is IoT

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

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