Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 136 · 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 Wi-Fi link do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
2. 2.What does the phone app do? (a) shows data to you (b) acts on a command (c) carries the data (d) stores data online
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a paper calendar (c) a Wi-Fi smart plug (d) a plain table fan
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a Wi-Fi doorbell camera
5. 5.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) an app-controlled bulb (d) a plain table fan
6. 6.What does the actuator do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
7. 7.What does the sensor do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
8. 8.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a pencil sharpener (d) a paper calendar
9. 9.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
11. 11.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the sensor measures (d) the cloud stores it
12. 12.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) sensor (c) cloud server (d) actuator
13. 13.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a battery torch
14. 14.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
16. 16.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) Wi-Fi (c) phone app (d) actuator
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
19. 19.What does the cloud server do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
22. 22.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) through a candle (c) by post (d) over Wi-Fi
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
25. 25.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
26. 26.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a Wi-Fi doorbell camera (d) a pencil sharpener
27. 27.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
29. 29.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi doorbell camera
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi weather station
33. 33.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a plain table fan (d) a Wi-Fi weather station
34. 34.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
36. 36.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a fitness band with app
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
38. 38.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a pencil sharpener (d) a battery torch
39. 39.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?

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