Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 511 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Input of Tools (d) Internet of Talk
2. 2.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) a candle in a jar (d) lights on from an app
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
4. 4.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
5. 5.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a fitness band with app
6. 6.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) microcontroller (c) Wi-Fi (d) sensor
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
9. 9.🌐 Is a wind-up clock 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: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
12. 12.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
13. 13.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
14. 14.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
15. 15.🔢 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
16. 16.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) actuator (d) sensor
17. 17.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a plain wall switch
18. 18.What does the phone app do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
19. 19.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) stores data online (d) acts on a command
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
21. 21.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) actuator
22. 22.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
24. 24.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) phone app (c) actuator (d) Wi-Fi
25. 25.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a wind-up clock
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
28. 28.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a smart energy meter
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
33. 33.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) phone app (c) cloud server (d) microcontroller
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a smart energy meter (d) a plain table fan
36. 36.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
37. 37.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a battery torch
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a plain table fan (d) an app-controlled bulb
39. 39.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
40. 40.What does the cloud server do? (a) carries the data (b) acts on a command (c) measures the real world (d) stores data online

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