Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 673 · 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 of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) a smart energy meter
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
3. 3.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
4. 4.🌐 In an IoT system, which part stores data online? (a) phone app (b) sensor (c) cloud server (d) actuator
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
8. 8.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
10. 10.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) Wi-Fi (d) actuator
13. 13.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
14. 14.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a plain wall switch (d) a plain table fan
15. 15.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 In an IoT system, which part measures the real world? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
18. 18.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) an app-controlled bulb (d) a plain wall switch
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
22. 22.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a wind-up clock (d) a Wi-Fi doorbell camera
23. 23.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) actuator (d) sensor
24. 24.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
25. 25.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) shows data to you (d) carries the data
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) Wi-Fi (c) sensor (d) phone app
28. 28.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a smart energy meter (d) a Wi-Fi weather station
30. 30.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a pencil sharpener
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
35. 35.What does the phone app do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
36. 36.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
39. 39.What does the sensor do? (a) measures the real world (b) stores data online (c) reads values, decides (d) acts on a command
40. 40.What does the cloud server do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides

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