Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 813 · 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 weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
2. 2.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) acts on a command (d) shows data to you
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
4. 4.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
5. 5.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a paper calendar (c) a plain wall switch (d) a plain table fan
6. 6.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi doorbell camera
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
8. 8.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) Wi-Fi (d) actuator
9. 9.What does the cloud server do? (a) acts on a command (b) carries the data (c) stores data online (d) shows data to you
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
14. 14.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) actuator (d) cloud server
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) it is sent by Wi-Fi
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
17. 17.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) phone app (d) Wi-Fi
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a pencil sharpener
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a fitness band with app
20. 20.What does the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) carries the data
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
22. 22.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
23. 23.🔢 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
24. 24.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a smart energy meter
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi smart plug
28. 28.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a paper calendar (d) a battery torch
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi doorbell camera
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi doorbell camera
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
34. 34.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) cloud server (d) phone app
35. 35.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
38. 38.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it

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