Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 48 · 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 IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
4. 4.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a paper calendar (d) a plain wall switch
5. 5.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi doorbell camera
6. 6.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
8. 8.What does the sensor do? (a) carries the data (b) measures the real world (c) shows data to you (d) stores data online
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
11. 11.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) microcontroller (d) phone app
12. 12.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) actuator (c) sensor (d) microcontroller
13. 13.🌐 In an IoT system, which part measures the real world? (a) actuator (b) phone app (c) sensor (d) microcontroller
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
16. 16.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
17. 17.🌐 In an IoT system, which part stores data online? (a) sensor (b) microcontroller (c) cloud server (d) actuator
18. 18.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a battery torch (d) a plain table fan
19. 19.What does the cloud server do? (a) shows data to you (b) measures the real world (c) stores data online (d) acts on a command
20. 20.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
22. 22.What does the microcontroller do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) stores data online
23. 23.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) an app-controlled bulb (d) a plain wall switch
24. 24.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
27. 27.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi weather station
28. 28.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
29. 29.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
31. 31.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
32. 32.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a wind-up clock (d) a paper calendar
35. 35.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
36. 36.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) measures the real world (d) carries the data
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
38. 38.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) an app-controlled bulb (d) a fitness band with app
39. 39.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) a Wi-Fi doorbell camera
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi weather station

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