Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 615 · 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 the cloud server do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
2. 2.What does the phone app do? (a) acts on a command (b) measures the real world (c) reads values, decides (d) shows data to you
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi weather station
4. 4.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a paper calendar
5. 5.What does the sensor do? (a) carries the data (b) acts on a command (c) measures the real world (d) reads values, decides
6. 6.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi weather station (d) a fitness band with app
7. 7.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a paper calendar (d) an app-controlled bulb
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain table fan (c) a Wi-Fi smart plug (d) a pencil sharpener
11. 11.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
12. 12.🌐 In an IoT system, which part stores data online? (a) actuator (b) phone app (c) microcontroller (d) cloud server
13. 13.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
14. 14.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
15. 15.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a battery torch (d) a smart energy meter
16. 16.What does the actuator do? (a) stores data online (b) shows data to you (c) acts on a command (d) carries the data
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a plain table fan (d) an app-controlled bulb
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
19. 19.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a battery torch (d) a plain wall switch
20. 20.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a battery torch
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
25. 25.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a smart energy meter (d) an app-controlled bulb
26. 26.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
27. 27.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
28. 28.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 100 readings take?
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
31. 31.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
33. 33.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) microcontroller (d) Wi-Fi
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
35. 35.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) cloud server (d) phone app
36. 36.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
37. 37.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
38. 38.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a battery torch
39. 39.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the board reads it (d) the sensor measures
40. 40.What does the microcontroller do? (a) stores data online (b) measures the real world (c) shows data to you (d) reads values, decides

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