Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 4 · 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, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
2. 2.Which of these is an IoT device? (a) a battery torch (b) a paper calendar (c) a smart energy meter (d) a wind-up clock
3. 3.What does the actuator do? (a) reads values, decides (b) acts on a command (c) stores data online (d) measures the real world
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
5. 5.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
6. 6.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
7. 7.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi smart plug
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a smart energy meter (d) a Wi-Fi doorbell camera
9. 9.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) measures the real world
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
11. 11.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) Wi-Fi
12. 12.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a battery torch (d) a plain table fan
14. 14.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) actuator (d) microcontroller
15. 15.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
16. 16.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
17. 17.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
18. 18.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi doorbell camera
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a battery torch (d) a fitness band with app
20. 20.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
22. 22.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
24. 24.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a battery torch
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
26. 26.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
30. 30.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
32. 32.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
34. 34.Which of these is not an IoT device? (a) a pencil sharpener (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
35. 35.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) actuator (d) phone app
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
38. 38.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain wall switch

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