Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 985 · 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 20 minutes. How many readings arrive in 1 hour?
2. 2.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
4. 4.🌐 In an IoT system, which part carries the data? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
5. 5.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi doorbell camera
6. 6.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) sensor (d) actuator
7. 7.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
9. 9.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a wind-up clock (d) a plain table fan
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
11. 11.What does the microcontroller do? (a) acts on a command (b) carries the data (c) shows data to you (d) reads values, decides
12. 12.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a plain wall switch
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Internet of Things (d) Input of Tools
15. 15.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
18. 18.What does the actuator do? (a) shows data to you (b) acts on a command (c) measures the real world (d) carries the data
19. 19.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
20. 20.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
22. 22.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
23. 23.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) phone app (d) sensor
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
29. 29.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi smart plug
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🌐 In an IoT system, which part shows data to you? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
32. 32.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) cloud server (c) phone app (d) microcontroller
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi smart plug
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.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
36. 36.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a Wi-Fi smart plug (d) a pencil sharpener
38. 38.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a pencil sharpener (d) a battery torch
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
40. 40.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?

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