Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 493 · 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 pencil sharpener (b) a wind-up clock (c) a battery torch (d) an app-controlled bulb
2. 2.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
3. 3.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
5. 5.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
6. 6.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
7. 7.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
8. 8.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) Wi-Fi (c) cloud server (d) sensor
9. 9.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 170 readings take?
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the sensor measures
11. 11.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
12. 12.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a pencil sharpener (d) an app-controlled bulb
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
14. 14.What does the Wi-Fi link do? (a) shows data to you (b) measures the real world (c) stores data online (d) carries the data
15. 15.What does the sensor do? (a) carries the data (b) reads values, decides (c) shows data to you (d) measures the real world
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
18. 18.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a battery torch (d) a plain wall switch
19. 19.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi smart plug
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) an app-controlled bulb
21. 21.What does the actuator do? (a) acts on a command (b) measures the real world (c) carries the data (d) stores data online
22. 22.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a smart energy meter
23. 23.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
24. 24.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) cloud server
26. 26.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
27. 27.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
28. 28.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a fitness band with app (d) a wind-up clock
29. 29.🏠 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
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a smart energy meter (c) a fitness band with app (d) a Wi-Fi weather station
34. 34.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a battery torch (d) a fitness band with app
35. 35.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
37. 37.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
38. 38.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
40. 40.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi smart plug (d) a Wi-Fi weather station

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