Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 659 · 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.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi smart plug
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
4. 4.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) carries the data (d) measures the real world
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
6. 6.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) cloud server (d) phone app
9. 9.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) sensor (d) phone app
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
12. 12.🔢 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
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a battery torch
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
15. 15.Which of these is not an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
17. 17.🔢 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
18. 18.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
20. 20.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
22. 22.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.What does the sensor do? (a) acts on a command (b) measures the real world (c) shows data to you (d) carries the data
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a battery torch
25. 25.🌐 In an IoT system, which part carries the data? (a) cloud server (b) microcontroller (c) sensor (d) Wi-Fi
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
29. 29.What does the actuator do? (a) carries the data (b) measures the real world (c) acts on a command (d) shows data to you
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a Wi-Fi smart plug (d) a fitness band with app
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
34. 34.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
35. 35.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) Wi-Fi (d) microcontroller
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
37. 37.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
38. 38.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a fitness band with app (d) a Wi-Fi doorbell camera
40. 40.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) actuator (c) sensor (d) phone app

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