Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 946 · 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) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
2. 2.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
4. 4.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) phone app (d) sensor
5. 5.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) an app-controlled bulb
7. 7.What does the microcontroller do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
9. 9.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) a Wi-Fi smart plug
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) a smart energy meter
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
15. 15.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
18. 18.What does the cloud server do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
19. 19.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain table fan
20. 20.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a wind-up clock (d) an app-controlled bulb
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain wall switch (d) a Wi-Fi doorbell camera
23. 23.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
25. 25.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a plain wall switch (d) a smart energy meter
26. 26.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
27. 27.Which of these is not an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a fitness band with app (d) a smart energy meter
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a pencil sharpener (d) a fitness band with app
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi smart plug
30. 30.🌐 In an IoT system, which part acts on a command? (a) sensor (b) actuator (c) cloud server (d) phone app
31. 31.🔢 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) it is sent by Wi-Fi (d) the board reads it
32. 32.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
36. 36.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) through a candle (d) by shouting
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
38. 38.What does the actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) reads values, decides
39. 39.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
40. 40.🏠 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

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