Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 907 · 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 25 bytes. How many bytes do 80 readings take?
2. 2.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
3. 3.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
4. 4.What does the microcontroller do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) an app-controlled bulb (c) a wind-up clock (d) a plain wall switch
6. 6.What does the cloud server do? (a) acts on a command (b) carries the data (c) stores data online (d) reads values, decides
7. 7.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
8. 8.🔍 Which is the odd one out? (a) a fitness band with app (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
9. 9.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the app shows it”? (a) the app shows it (b) the board reads it
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) the app shows it (b) it is sent by Wi-Fi
11. 11.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Input of Tools (d) Internet of Things
12. 12.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
13. 13.🔢 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
14. 14.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
17. 17.🌐 In an IoT system, which part carries the data? (a) phone app (b) sensor (c) Wi-Fi (d) microcontroller
18. 18.What does the sensor do? (a) carries the data (b) acts on a command (c) reads values, decides (d) measures the real world
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) over Wi-Fi (c) by post (d) by shouting
20. 20.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) sensor (c) cloud server (d) Wi-Fi
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
22. 22.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
24. 24.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
25. 25.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a smart energy meter (d) a plain wall switch
26. 26.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a Wi-Fi smart plug (d) an app-controlled bulb
27. 27.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
28. 28.What does the phone app do? (a) reads values, decides (b) measures the real world (c) shows data to you (d) acts on a command
29. 29.🌐 In an IoT system, which part acts on a command? (a) actuator (b) sensor (c) cloud server (d) Wi-Fi
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a fitness band with app (d) a Wi-Fi doorbell camera
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
34. 34.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a Wi-Fi smart plug
35. 35.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
37. 37.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
38. 38.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) sensor (c) cloud server (d) actuator

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