Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 494 · 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.🌐 In an IoT system, which part measures the real world? (a) sensor (b) phone app (c) Wi-Fi (d) microcontroller
2. 2.🌐 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
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
4. 4.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
5. 5.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) cloud server (d) actuator
6. 6.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a pencil sharpener (d) a smart energy meter
7. 7.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a fitness band with app
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a fitness band with app (c) a paper calendar (d) a wind-up clock
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a Wi-Fi weather station
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
12. 12.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
13. 13.🔢 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
14. 14.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a battery torch
15. 15.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
16. 16.What does the cloud server do? (a) reads values, decides (b) stores data online (c) measures the real world (d) carries the data
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
20. 20.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
21. 21.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
22. 22.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) acts on a command (d) carries the data
23. 23.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a battery torch
25. 25.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a battery torch (d) a Wi-Fi smart plug
26. 26.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
27. 27.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) shows data to you
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
29. 29.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) carries the data
30. 30.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
31. 31.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi weather station (d) a battery torch
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) the sensor measures
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a paper calendar (d) a battery torch
35. 35.What does the sensor do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
36. 36.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) sensor
38. 38.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?

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