Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 241 · 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) a Wi-Fi doorbell camera (b) a battery torch (c) a Wi-Fi weather station (d) an app-controlled bulb
2. 2.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) measures the real world (d) reads values, decides
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) lights on from an app (d) a candle in a jar
4. 4.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
6. 6.🔢 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
7. 7.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) microcontroller (c) phone app (d) actuator
9. 9.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
10. 10.🔢 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
11. 11.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
13. 13.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 5 minutes?
15. 15.🌐 In an IoT system, which part carries the data? (a) sensor (b) microcontroller (c) Wi-Fi (d) actuator
16. 16.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
17. 17.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
19. 19.🔍 Which is the odd one out? (a) a wind-up clock (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
20. 20.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
22. 22.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
23. 23.🌐 In an IoT system, which part stores data online? (a) phone app (b) cloud server (c) microcontroller (d) Wi-Fi
24. 24.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a paper calendar
26. 26.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
27. 27.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) Wi-Fi (d) actuator
28. 28.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a battery torch
29. 29.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
30. 30.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a fitness band with app (d) an app-controlled bulb
32. 32.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
33. 33.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a battery torch (d) a Wi-Fi weather station
34. 34.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a plain table fan
35. 35.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
37. 37.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
40. 40.What does the sensor do? (a) reads values, decides (b) carries the data (c) acts on a command (d) measures the real world

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