Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 710 · 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.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
3. 3.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
5. 5.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a smart energy meter
9. 9.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the cloud stores it (b) the app shows it
11. 11.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
13. 13.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the board reads it (d) the sensor measures
15. 15.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
17. 17.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain table fan (c) a Wi-Fi weather station (d) a smart energy meter
18. 18.What does the Wi-Fi link do? (a) shows data to you (b) stores data online (c) carries the data (d) acts on a command
19. 19.What does the microcontroller do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
21. 21.What does the actuator do? (a) reads values, decides (b) acts on a command (c) shows data to you (d) stores data online
22. 22.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) acts on a command
23. 23.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) sensor (d) cloud server
24. 24.What does the cloud server do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
25. 25.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a wind-up clock (d) an app-controlled bulb
27. 27.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a pencil sharpener (d) a battery torch
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) an app-controlled bulb (d) a fitness band with app
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
31. 31.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a smart energy meter (d) a battery torch
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi weather station (d) a smart energy meter
33. 33.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a Wi-Fi doorbell camera (d) a smart energy meter
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain wall switch (d) a pencil sharpener
35. 35.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
39. 39.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar

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