Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 614 · 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.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) actuator (d) cloud server
2. 2.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
4. 4.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi smart plug (d) a fitness band with app
5. 5.What does the phone app do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
6. 6.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
7. 7.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
8. 8.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
9. 9.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
11. 11.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
12. 12.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
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 acts on a command? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
19. 19.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a pencil sharpener (d) a battery torch
20. 20.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a plain wall switch (d) a battery torch
21. 21.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
22. 22.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a battery torch (d) a pencil sharpener
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the board reads it
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
29. 29.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.What does the actuator do? (a) measures the real world (b) acts on a command (c) stores data online (d) reads values, decides
32. 32.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
34. 34.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) actuator
35. 35.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
36. 36.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a wind-up clock (d) a plain table fan
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a battery torch (d) an app-controlled bulb
39. 39.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) phone app (c) actuator (d) sensor
40. 40.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a plain wall switch (d) a paper calendar

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