Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 761 · 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.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) Wi-Fi (c) microcontroller (d) sensor
2. 2.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
3. 3.What does the sensor do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
4. 4.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
5. 5.🔍 Which is the odd one out? (a) a pencil sharpener (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
6. 6.What does the phone app do? (a) stores data online (b) carries the data (c) shows data to you (d) reads values, decides
7. 7.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) it is sent by Wi-Fi (c) the app shows it (d) the board reads it
8. 8.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
9. 9.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain table fan
10. 10.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the Wi-Fi link do? (a) carries the data (b) stores data online (c) measures the real world (d) reads values, decides
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
13. 13.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
14. 14.Which of these is not an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a Wi-Fi smart plug
15. 15.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) actuator (d) Wi-Fi
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the sensor measures (d) the app shows it
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
19. 19.🔢 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
20. 20.What does the cloud server do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
21. 21.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
22. 22.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
24. 24.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) stores data online (d) acts on a command
25. 25.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
26. 26.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
28. 28.🔢 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
29. 29.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
30. 30.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) phone app (d) sensor
31. 31.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
32. 32.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
33. 33.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
34. 34.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) sensor (d) cloud server
35. 35.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi weather station
36. 36.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a battery torch (c) a paper calendar (d) a wind-up clock
37. 37.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
39. 39.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?

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