Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 31 · 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.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
2. 2.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a fitness band with app (d) a battery torch
3. 3.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a pencil sharpener
6. 6.What does the cloud server do? (a) measures the real world (b) stores data online (c) carries the data (d) acts on a command
7. 7.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
8. 8.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the sensor measures (b) the cloud stores it
10. 10.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a paper calendar
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
16. 16.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) actuator (d) microcontroller
17. 17.What does the microcontroller do? (a) acts on a command (b) stores data online (c) reads values, decides (d) shows data to you
18. 18.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
22. 22.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain wall switch
23. 23.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi weather station
24. 24.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a plain table fan (d) a battery torch
25. 25.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
32. 32.What does the sensor do? (a) stores data online (b) measures the real world (c) acts on a command (d) shows data to you
33. 33.🔢 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) it is sent by Wi-Fi
34. 34.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
35. 35.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a printed map (d) a hand fan
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the sensor measures
37. 37.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) sensor (d) Wi-Fi
38. 38.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
40. 40.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device

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