Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 627 · 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 of these is an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a battery torch (d) a plain table fan
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) the cloud stores it
3. 3.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
4. 4.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a battery torch (d) a smart energy meter
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain wall switch
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
9. 9.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) sensor (d) microcontroller
10. 10.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🔍 Which is the odd one out? (a) a battery torch (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
12. 12.What does the actuator do? (a) shows data to you (b) reads values, decides (c) stores data online (d) acts on a command
13. 13.Which of these is not an IoT device? (a) a smart energy meter (b) a battery torch (c) a Wi-Fi smart plug (d) a fitness band with app
14. 14.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) Wi-Fi (c) microcontroller (d) sensor
15. 15.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain wall switch (d) a plain table fan
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a pencil sharpener
18. 18.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a fitness band with app
20. 20.What does the microcontroller do? (a) shows data to you (b) reads values, decides (c) measures the real world (d) acts on a command
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
22. 22.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a pencil sharpener (d) a Wi-Fi smart plug
23. 23.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
25. 25.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi weather station (d) a paper calendar
26. 26.🏠 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
27. 27.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a paper calendar (d) an app-controlled bulb
29. 29.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a plain wall switch
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
33. 33.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) phone app (d) cloud server
34. 34.What does the cloud server do? (a) shows data to you (b) carries the data (c) reads values, decides (d) stores data online
35. 35.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) actuator (d) microcontroller
36. 36.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
38. 38.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
40. 40.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device

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