Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 284 · 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.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
2. 2.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a paper calendar (d) a smart energy meter
3. 3.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain table fan
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
7. 7.What does the phone app do? (a) acts on a command (b) stores data online (c) shows data to you (d) carries the data
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
9. 9.🔍 Which is the odd one out? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a wind-up clock
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
11. 11.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) cloud server
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
13. 13.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
16. 16.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) stores data online
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
19. 19.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a paper calendar (d) a plain table fan
20. 20.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
21. 21.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 In an IoT system, which part carries the data? (a) cloud server (b) sensor (c) phone app (d) Wi-Fi
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
24. 24.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
25. 25.What does the Wi-Fi link do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) carries the data
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
27. 27.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) an app-controlled bulb (d) a wind-up clock
28. 28.What does the cloud server do? (a) reads values, decides (b) carries the data (c) acts on a command (d) stores data online
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a pencil sharpener
33. 33.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a paper calendar (d) a smart energy meter
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 In an IoT system, which part measures the real world? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures

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