Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 629 · 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.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) microcontroller (c) sensor (d) cloud server
2. 2.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
3. 3.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
4. 4.What does the Wi-Fi link do? (a) measures the real world (b) stores data online (c) acts on a command (d) carries the data
5. 5.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
6. 6.🔍 Which is the odd one out? (a) a battery torch (b) an app-controlled bulb (c) a plain wall switch (d) a paper calendar
7. 7.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi doorbell camera
8. 8.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 70 readings take?
9. 9.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a pencil sharpener
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 soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
12. 12.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
13. 13.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
14. 14.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
16. 16.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🔍 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 wall switch
19. 19.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) phone app (c) Wi-Fi (d) microcontroller
21. 21.What does the actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi doorbell camera
23. 23.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
26. 26.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi weather station
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
28. 28.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
33. 33.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi weather station (d) an app-controlled bulb
34. 34.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
35. 35.🔍 Which is the odd one out? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi smart plug (d) a paper calendar
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
38. 38.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a plain table fan (d) a Wi-Fi smart plug
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station

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