Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 255 · 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) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
2. 2.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a Wi-Fi smart plug (d) a wind-up clock
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a Wi-Fi smart plug
6. 6.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
7. 7.Which of these is not an IoT device? (a) a paper calendar (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
9. 9.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
10. 10.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
13. 13.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
14. 14.Which of these is not an IoT device? (a) a smart energy meter (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi smart plug
15. 15.What does the cloud server do? (a) reads values, decides (b) acts on a command (c) carries the data (d) stores data online
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi doorbell camera
17. 17.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) actuator (d) cloud server
19. 19.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a plain table fan
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
22. 22.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi smart plug
23. 23.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the sensor measures (b) the app shows it
25. 25.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
27. 27.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
30. 30.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a plain table fan (d) a wind-up clock
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
32. 32.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
33. 33.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi weather station
34. 34.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) acts on a command
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
36. 36.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain table fan (d) a battery torch
37. 37.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
38. 38.🔢 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
39. 39.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a fitness band with app (d) a Wi-Fi smart plug
40. 40.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?

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