Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 873 · 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 weather station (b) a Wi-Fi smart plug (c) a smart energy meter (d) a pencil sharpener
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
5. 5.🔢 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
6. 6.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
7. 7.What does the actuator do? (a) stores data online (b) measures the real world (c) acts on a command (d) reads values, decides
8. 8.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
9. 9.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a hand fan (d) a candle in a jar
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
11. 11.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
12. 12.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
14. 14.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
15. 15.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the sensor measures
17. 17.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) phone app (d) actuator
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the app shows it (d) the cloud stores it
21. 21.What does the cloud server do? (a) stores data online (b) acts on a command (c) measures the real world (d) carries the data
22. 22.Which of these is an IoT device? (a) a plain table fan (b) a battery torch (c) a smart energy meter (d) a pencil sharpener
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a plain wall switch (d) a pencil sharpener
25. 25.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
26. 26.What does the phone app do? (a) measures the real world (b) reads values, decides (c) shows data to you (d) stores data online
27. 27.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
29. 29.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) Wi-Fi (c) phone app (d) actuator
30. 30.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
31. 31.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi weather station (d) a paper calendar
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 110 readings take?
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
34. 34.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the app shows it
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
37. 37.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the cloud stores it (d) the app shows it
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a plain wall switch
39. 39.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) cloud server (d) actuator

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