Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 607 · 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.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
8. 8.🌐 In an IoT system, which part acts on a command? (a) phone app (b) actuator (c) microcontroller (d) Wi-Fi
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
12. 12.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) shows data to you
13. 13.What does the actuator do? (a) measures the real world (b) stores data online (c) carries the data (d) acts on a command
14. 14.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) microcontroller (d) actuator
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
16. 16.What does the microcontroller do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 160 readings take?
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
21. 21.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
22. 22.What does the phone app do? (a) shows data to you (b) carries the data (c) stores data online (d) acts on a command
23. 23.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
25. 25.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) an app-controlled bulb
27. 27.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 In an IoT system, which part shows data to you? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
29. 29.🔍 Which is the odd one out? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
30. 30.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
31. 31.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
33. 33.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a pencil sharpener (d) a fitness band with app
34. 34.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a plain wall switch (d) a plain table fan
36. 36.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a fitness band with app (d) a Wi-Fi doorbell camera
37. 37.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
38. 38.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
40. 40.🔢 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

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