Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 199 · 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 soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a pencil sharpener (d) a battery torch
8. 8.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
9. 9.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) measures the real world (d) carries the data
10. 10.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
11. 11.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
14. 14.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
15. 15.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
16. 16.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) stores data online
17. 17.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
20. 20.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a wind-up clock (d) a smart energy meter
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
22. 22.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
24. 24.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) cloud server (d) phone app
25. 25.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) Wi-Fi (d) microcontroller
26. 26.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
27. 27.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi weather station (d) a paper calendar
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
29. 29.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi
30. 30.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 160 readings take?
34. 34.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a fitness band with app (d) a wind-up clock
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a wind-up clock
36. 36.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
37. 37.🌐 In an IoT system, which part measures the real world? (a) phone app (b) cloud server (c) sensor (d) microcontroller
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
40. 40.What does the cloud server do? (a) reads values, decides (b) stores data online (c) carries the data (d) shows data to you

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