Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 616 · 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 sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
3. 3.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) phone app (d) actuator
4. 4.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
6. 6.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 8 minutes?
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a battery torch (d) an app-controlled bulb
8. 8.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
10. 10.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
11. 11.What does the phone app do? (a) reads values, decides (b) acts on a command (c) stores data online (d) shows data to you
12. 12.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
13. 13.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) shows data to you
14. 14.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
15. 15.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a pencil sharpener (d) a plain table fan
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
18. 18.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi smart plug
20. 20.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a battery torch (d) a plain table fan
21. 21.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
23. 23.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
26. 26.🔢 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 cloud stores it (c) the sensor measures (d) the app shows it
27. 27.🔢 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) the board reads it
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
30. 30.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a fitness band with app
31. 31.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a pencil sharpener
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
33. 33.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
34. 34.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a plain table fan (d) a paper calendar
36. 36.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
37. 37.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a paper calendar
40. 40.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the cloud stores it (c) the sensor measures (d) it is sent by Wi-Fi

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