Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 206 · 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 comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
2. 2.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
3. 3.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
4. 4.What does the Wi-Fi link do? (a) reads values, decides (b) stores data online (c) carries the data (d) acts on a command
5. 5.What does the microcontroller do? (a) measures the real world (b) reads values, decides (c) carries the data (d) acts on a command
6. 6.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
7. 7.What does the cloud server do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
8. 8.🔍 Which is the odd one out? (a) a paper calendar (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
9. 9.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
10. 10.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
12. 12.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
15. 15.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) Wi-Fi (c) sensor (d) actuator
16. 16.🌐 In an IoT system, which part carries the data? (a) actuator (b) microcontroller (c) cloud server (d) Wi-Fi
17. 17.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
18. 18.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the board reads it (c) the app shows it (d) the cloud stores it
22. 22.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a plain wall switch (d) a fitness band with app
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
24. 24.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
25. 25.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a battery torch (d) a fitness band with app
29. 29.What does the phone app do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
30. 30.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a battery torch (d) a plain wall switch
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
32. 32.🏠 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
33. 33.What does the actuator do? (a) acts on a command (b) carries the data (c) reads values, decides (d) measures the real world
34. 34.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a Wi-Fi weather station (d) a smart energy meter
35. 35.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
36. 36.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
38. 38.🔢 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
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
40. 40.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi smart plug

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