Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 631 · 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 170 readings take?
2. 2.What does the microcontroller do? (a) carries the data (b) acts on a command (c) reads values, decides (d) stores data online
3. 3.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
5. 5.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the app shows it”? (a) the app shows it (b) the sensor measures
7. 7.What does the sensor do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a plain wall switch (d) a paper calendar
9. 9.What does the phone app do? (a) reads values, decides (b) stores data online (c) shows data to you (d) measures the real world
10. 10.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
12. 12.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a battery torch (c) a smart energy meter (d) an app-controlled bulb
13. 13.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
15. 15.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
16. 16.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
17. 17.🌐 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
18. 18.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 70 readings take?
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 7 minutes?
20. 20.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) Wi-Fi (d) actuator
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
22. 22.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
23. 23.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) reads values, decides
24. 24.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) microcontroller (d) actuator
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
27. 27.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
29. 29.🔢 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 sensor measures (d) the app shows it
30. 30.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a paper calendar (d) an app-controlled bulb
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
33. 33.🏠 Which is a smart-home example? (a) a hand fan (b) lights on from an app (c) a printed map (d) a candle in a jar
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a smart energy meter (c) a plain table fan (d) a plain wall switch
35. 35.What does the cloud server do? (a) measures the real world (b) shows data to you (c) stores data online (d) acts on a command
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
38. 38.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
39. 39.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a plain wall switch
40. 40.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?

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