Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 41 · 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 60 readings take?
2. 2.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
3. 3.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
4. 4.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) cloud server
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
6. 6.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
8. 8.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 In an IoT system, which part measures the real world? (a) phone app (b) microcontroller (c) actuator (d) sensor
10. 10.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a plain table fan (d) a battery torch
11. 11.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a Wi-Fi smart plug
12. 12.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
13. 13.What does the actuator do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi weather station
16. 16.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a plain table fan
17. 17.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) actuator (d) sensor
19. 19.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) an app-controlled bulb
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
22. 22.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
25. 25.What does the sensor do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
27. 27.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain wall switch
29. 29.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a battery torch (d) a fitness band with app
30. 30.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
32. 32.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) an app-controlled bulb (d) a Wi-Fi smart plug
33. 33.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) it is sent by Wi-Fi
34. 34.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a fitness band with app (d) a plain table fan
35. 35.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
36. 36.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a plain wall switch (d) a battery torch
37. 37.🔢 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
38. 38.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
39. 39.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) measures the real world (d) acts on a command
40. 40.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device

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