Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 622 · 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
2. 2.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a plain table fan (d) a wind-up clock
3. 3.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) over Wi-Fi (d) through a candle
5. 5.What does the phone app do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
7. 7.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain wall switch
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a pencil sharpener (d) a plain wall switch
9. 9.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
10. 10.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) a hand fan (d) lights on from an app
12. 12.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
13. 13.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) phone app (d) actuator
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
15. 15.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi smart plug
17. 17.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
19. 19.What does the sensor do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) stores data online
20. 20.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
21. 21.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
22. 22.Which of these is an IoT device? (a) a plain table fan (b) a smart energy meter (c) a pencil sharpener (d) a plain wall switch
23. 23.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) microcontroller
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
25. 25.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
26. 26.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) cloud server (d) sensor
27. 27.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
28. 28.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
29. 29.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
30. 30.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) cloud server (d) phone app
31. 31.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a plain wall switch
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
34. 34.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
37. 37.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
38. 38.What does the cloud server do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
40. 40.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device

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