Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 749 · 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 15 seconds. How many readings does it send in 3 minutes?
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
3. 3.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔢 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
5. 5.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
8. 8.What does the phone app do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) stores data online
9. 9.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
10. 10.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a battery torch (d) a paper calendar
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
12. 12.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a pencil sharpener (d) a wind-up clock
13. 13.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) stores data online
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
17. 17.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
18. 18.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a battery torch
19. 19.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
20. 20.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a plain table fan
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the cloud stores it
22. 22.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a plain table fan (d) a Wi-Fi smart plug
24. 24.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
25. 25.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
26. 26.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi weather station
27. 27.What does the Wi-Fi link do? (a) shows data to you (b) reads values, decides (c) carries the data (d) measures the real world
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a plain table fan (d) a battery torch
32. 32.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) phone app
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
34. 34.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) sensor (d) cloud server
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a fitness band with app (d) a paper calendar
37. 37.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
38. 38.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar

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