Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 20 · 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.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
3. 3.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a smart energy meter (d) a wind-up clock
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
5. 5.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
7. 7.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
9. 9.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) measures the real world (d) carries the data
12. 12.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
14. 14.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
15. 15.What does the cloud server do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) stores data online
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
17. 17.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi weather station (d) a paper calendar
18. 18.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a plain table fan (d) an app-controlled bulb
20. 20.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a battery torch (d) a plain table fan
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
23. 23.🏠 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
24. 24.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
28. 28.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
29. 29.What does the actuator do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
30. 30.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a fitness band with app
31. 31.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a wind-up clock
34. 34.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
36. 36.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi weather station
37. 37.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) actuator (d) cloud server
38. 38.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a fitness band with app
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
40. 40.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a smart energy meter (c) a Wi-Fi smart plug (d) a plain wall switch

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