Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 606 · 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 20 bytes. How many bytes do 90 readings take?
2. 2.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
3. 3.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) sensor (c) cloud server (d) phone app
5. 5.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi smart plug
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a fitness band with app (d) a battery torch
8. 8.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
9. 9.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a paper calendar
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
11. 11.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi weather station (c) a battery torch (d) a plain wall switch
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
14. 14.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
15. 15.What does the cloud server do? (a) stores data online (b) reads values, decides (c) measures the real world (d) acts on a command
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
19. 19.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a battery torch (d) a Wi-Fi smart plug
20. 20.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a battery torch
21. 21.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
24. 24.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a plain table fan (d) a Wi-Fi smart plug
25. 25.🌐 In an IoT system, which part carries the data? (a) phone app (b) Wi-Fi (c) actuator (d) cloud server
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
27. 27.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a wind-up clock
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
31. 31.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the board reads it”? (a) the cloud stores it (b) the board reads it
33. 33.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
34. 34.🌐 In an IoT system, which part measures the real world? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
36. 36.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
37. 37.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi weather station
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a smart energy meter (d) a pencil sharpener
39. 39.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools

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