Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 734 · 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, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
2. 2.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) sensor (d) microcontroller
3. 3.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
5. 5.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi smart plug
6. 6.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
7. 7.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a plain wall switch (d) a smart energy meter
8. 8.What does the Wi-Fi link do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi doorbell camera
10. 10.🌐 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
11. 11.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) an app-controlled bulb (d) a pencil sharpener
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
16. 16.What does the actuator do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
17. 17.🌐 In an IoT system, which part carries the data? (a) sensor (b) actuator (c) Wi-Fi (d) cloud server
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
20. 20.What does the cloud server do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
21. 21.🔢 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
22. 22.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
25. 25.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a plain table fan
26. 26.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
27. 27.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
28. 28.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔢 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
31. 31.What does the phone app do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
32. 32.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
33. 33.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a battery torch (d) a Wi-Fi doorbell camera
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a smart energy meter (d) a Wi-Fi doorbell camera
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a pencil sharpener (d) a Wi-Fi weather station
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
38. 38.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a wind-up clock (d) a battery torch
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
40. 40.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the board reads it (b) the app shows it

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