Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 531 · 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.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
3. 3.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
4. 4.What does the Wi-Fi link do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
6. 6.🔢 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
7. 7.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
8. 8.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
9. 9.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
10. 10.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
11. 11.What does the phone app do? (a) stores data online (b) carries the data (c) shows data to you (d) acts on a command
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
14. 14.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
15. 15.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) stores data online (d) reads values, decides
16. 16.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a wind-up clock (d) a fitness band with app
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
18. 18.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
19. 19.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) sensor (d) cloud server
20. 20.🌐 In an IoT system, which part acts on a command? (a) sensor (b) cloud server (c) Wi-Fi (d) actuator
21. 21.🌐 In an IoT system, which part shows data to you? (a) sensor (b) Wi-Fi (c) microcontroller (d) phone app
22. 22.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a pencil sharpener (c) a paper calendar (d) a battery torch
24. 24.What does the sensor do? (a) acts on a command (b) stores data online (c) carries the data (d) measures the real world
25. 25.Which of these is not an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
26. 26.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) phone app (c) Wi-Fi (d) microcontroller
27. 27.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
29. 29.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi doorbell camera
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
33. 33.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a pencil sharpener (d) a wind-up clock
34. 34.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain wall switch (c) a battery torch (d) a fitness band with app
36. 36.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
38. 38.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
39. 39.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a smart energy meter
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?

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