Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 291 · 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.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
3. 3.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
4. 4.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
6. 6.What does the sensor do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the board reads it (b) the sensor measures
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
10. 10.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi weather station
11. 11.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
13. 13.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) carries the data
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
15. 15.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
16. 16.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi weather station (d) a fitness band with app
18. 18.🏠 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
19. 19.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) Wi-Fi (d) sensor
20. 20.What does the microcontroller do? (a) measures the real world (b) shows data to you (c) reads values, decides (d) acts on a command
21. 21.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a plain table fan
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
23. 23.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
24. 24.What does the Wi-Fi link do? (a) acts on a command (b) shows data to you (c) reads values, decides (d) carries the data
25. 25.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi smart plug
26. 26.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a smart energy meter (d) a plain table fan
28. 28.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
29. 29.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a smart energy meter (d) a Wi-Fi weather station
30. 30.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) microcontroller (d) sensor
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
32. 32.Which of these is an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a plain table fan (d) a paper calendar
33. 33.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a fitness band with app
34. 34.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
36. 36.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the app shows it (d) the sensor measures
37. 37.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi doorbell camera
38. 38.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
39. 39.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) sensor (d) phone app
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi weather station (d) a plain wall switch

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