Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 510 · 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) microcontroller (c) cloud server (d) actuator
2. 2.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
3. 3.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a Wi-Fi weather station (d) a pencil sharpener
4. 4.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
8. 8.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
9. 9.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a plain wall switch (d) a smart energy meter
10. 10.What does the actuator do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
11. 11.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi smart plug
12. 12.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
13. 13.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a Wi-Fi weather station (d) a pencil sharpener
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
16. 16.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
18. 18.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) Wi-Fi (d) sensor
19. 19.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) sensor (d) Wi-Fi
20. 20.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a plain table fan (d) a Wi-Fi smart plug
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
22. 22.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
23. 23.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) Wi-Fi (d) actuator
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
25. 25.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
26. 26.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
28. 28.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
29. 29.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a paper calendar (d) a wind-up clock
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a fitness band with app
31. 31.What does the cloud server do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
32. 32.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
33. 33.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a wind-up clock (d) a plain table fan
36. 36.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) a smart energy meter (d) a battery torch
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
38. 38.What does the microcontroller do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
40. 40.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures

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