Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 564 · 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) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
2. 2.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
4. 4.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain wall switch
5. 5.What does the Wi-Fi link do? (a) carries the data (b) reads values, decides (c) acts on a command (d) shows data to you
6. 6.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (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.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
10. 10.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
11. 11.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
12. 12.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the app shows it
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
14. 14.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
15. 15.What does the actuator do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) it is sent by Wi-Fi (b) the board reads it
17. 17.What does the cloud server do? (a) carries the data (b) stores data online (c) measures the real world (d) acts on a command
18. 18.What does the microcontroller do? (a) acts on a command (b) reads values, decides (c) carries the data (d) measures the real world
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) it is sent by Wi-Fi (d) the sensor measures
21. 21.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
24. 24.🔢 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 app shows it (d) the cloud stores it
25. 25.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Internet of Talk (d) Inside of Toys
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
27. 27.🔢 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
28. 28.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) sensor (d) phone app
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a smart energy meter
31. 31.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
32. 32.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
34. 34.What does the phone app do? (a) carries the data (b) stores data online (c) measures the real world (d) shows data to you
35. 35.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 80 readings take?
38. 38.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
39. 39.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device

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