Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 735 · 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.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
2. 2.What does the cloud server do? (a) reads values, decides (b) carries the data (c) measures the real world (d) stores data online
3. 3.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a smart energy meter
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a battery torch (c) a smart energy meter (d) a Wi-Fi weather station
5. 5.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
6. 6.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🏠 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
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
10. 10.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) actuator (c) microcontroller (d) phone app
11. 11.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
13. 13.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) shows data to you (d) carries the data
14. 14.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 In an IoT system, which part stores data online? (a) actuator (b) sensor (c) Wi-Fi (d) cloud server
17. 17.What does the sensor do? (a) acts on a command (b) measures the real world (c) shows data to you (d) stores data online
18. 18.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) sensor (d) microcontroller
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
22. 22.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
23. 23.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the board reads it (b) the cloud stores it
28. 28.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a wind-up clock (d) a plain table fan
30. 30.🔢 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
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) an app-controlled bulb (d) a plain wall switch
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the cloud stores it
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
34. 34.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
35. 35.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
37. 37.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a fitness band with app (d) a pencil sharpener
38. 38.What does the phone app do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
39. 39.🌐 In an IoT system, which part shows data to you? (a) actuator (b) sensor (c) phone app (d) Wi-Fi
40. 40.Which of these is an IoT device? (a) a wind-up clock (b) an app-controlled bulb (c) a battery torch (d) a paper calendar

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