Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 384 · 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 Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
2. 2.What does the phone app do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
3. 3.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
5. 5.What does the actuator do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
6. 6.What does the sensor do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
7. 7.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
8. 8.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) actuator (d) sensor
9. 9.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a pencil sharpener (c) a battery torch (d) a wind-up clock
10. 10.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a wind-up clock
11. 11.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a pencil sharpener
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
15. 15.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
16. 16.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
20. 20.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a battery torch
21. 21.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) the app shows it (b) it is sent by Wi-Fi
23. 23.🔢 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
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a wind-up clock (d) a plain table fan
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
28. 28.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
31. 31.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
32. 32.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi weather station
33. 33.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
35. 35.Which of these is an IoT device? (a) a paper calendar (b) a wind-up clock (c) a smart energy meter (d) a battery torch
36. 36.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi weather station
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
39. 39.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
40. 40.🌐 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

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