Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 30 · 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.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
2. 2.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) microcontroller (d) cloud server
3. 3.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
4. 4.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi weather station
5. 5.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) a printed map (d) lights on from an app
6. 6.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
7. 7.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
8. 8.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
9. 9.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
10. 10.🌐 In an IoT system, which part carries the data? (a) cloud server (b) Wi-Fi (c) actuator (d) sensor
11. 11.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a plain table fan (d) a wind-up clock
12. 12.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) cloud server (d) microcontroller
13. 13.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a plain table fan (d) a battery torch
14. 14.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a fitness band with app (d) a wind-up clock
20. 20.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) cloud server (d) phone app
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🔢 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 cloud stores it (d) the app shows it
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a smart energy meter
25. 25.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) stores data online (d) carries the data
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
28. 28.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 4 minutes?
31. 31.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) an app-controlled bulb (d) a fitness band with app
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
33. 33.What does the actuator do? (a) reads values, decides (b) acts on a command (c) carries the data (d) stores data online
34. 34.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
38. 38.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
40. 40.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device

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