Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 203 · 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 of these is an IoT device? (a) a plain table fan (b) a Wi-Fi weather station (c) a pencil sharpener (d) a plain wall switch
2. 2.🌐 In an IoT system, which part stores data online? (a) cloud server (b) microcontroller (c) phone app (d) Wi-Fi
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Internet of Things (d) Inside of Toys
4. 4.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
6. 6.🔢 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 app shows it (c) the board reads it (d) the sensor measures
7. 7.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 9 minutes?
8. 8.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain wall switch (d) a plain table fan
9. 9.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 160 readings take?
10. 10.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
11. 11.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
13. 13.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) an app-controlled bulb (d) a paper calendar
14. 14.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a wind-up clock (d) a Wi-Fi doorbell camera
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
16. 16.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
19. 19.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) stores data online
20. 20.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
22. 22.🔢 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
23. 23.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) a printed map (d) lights on from an app
24. 24.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) sensor (c) microcontroller (d) actuator
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
26. 26.🔢 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
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 10 minutes?
28. 28.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
29. 29.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a paper calendar
30. 30.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) shows data to you
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
32. 32.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) cloud server (c) actuator (d) phone app
33. 33.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a wind-up clock (d) a Wi-Fi doorbell camera
34. 34.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
35. 35.🔍 Which is the odd one out? (a) a plain wall switch (b) a smart energy meter (c) a battery torch (d) a plain table fan
36. 36.What does the cloud server do? (a) shows data to you (b) stores data online (c) carries the data (d) measures the real world
37. 37.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a Wi-Fi weather station
39. 39.🌐 In an IoT system, which part reads values, decides? (a) phone app (b) cloud server (c) actuator (d) microcontroller
40. 40.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) microcontroller (d) sensor

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