Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 545 · 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 Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi smart plug
4. 4.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) Wi-Fi (d) phone app
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the app shows it
6. 6.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
7. 7.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a pencil sharpener (d) a plain table fan
8. 8.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
9. 9.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
11. 11.What does the actuator do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
12. 12.What does the Wi-Fi link do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
13. 13.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
15. 15.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) actuator (d) Wi-Fi
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
19. 19.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
20. 20.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
21. 21.🌐 In an IoT system, which part acts on a command? (a) phone app (b) Wi-Fi (c) sensor (d) actuator
22. 22.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
24. 24.🏠 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
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
26. 26.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
27. 27.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a plain table fan (d) a battery torch
28. 28.🔢 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
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
31. 31.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a paper calendar
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a plain table fan (d) a battery torch
34. 34.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) actuator (d) Wi-Fi
35. 35.What does the phone app do? (a) carries the data (b) stores data online (c) shows data to you (d) measures the real world
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
37. 37.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
39. 39.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
40. 40.What does the microcontroller do? (a) reads values, decides (b) carries the data (c) shows data to you (d) acts on a command

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