Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 167 · 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.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a fitness band with app
3. 3.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
4. 4.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi weather station
6. 6.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) a Wi-Fi weather station
7. 7.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
8. 8.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
10. 10.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi doorbell camera (c) a paper calendar (d) a plain wall switch
11. 11.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
13. 13.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a battery torch (d) a Wi-Fi doorbell camera
16. 16.🌐 In an IoT system, which part carries the data? (a) cloud server (b) actuator (c) sensor (d) Wi-Fi
17. 17.🌐 In an IoT system, which part stores data online? (a) sensor (b) cloud server (c) microcontroller (d) phone app
18. 18.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
19. 19.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) shows data to you (d) carries the data
20. 20.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
21. 21.🔢 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
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
23. 23.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
24. 24.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a wind-up clock (d) a plain table fan
25. 25.What does the cloud server do? (a) measures the real world (b) stores data online (c) reads values, decides (d) carries the data
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
27. 27.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) cloud server (c) microcontroller (d) actuator
28. 28.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
29. 29.🔢 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
30. 30.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) microcontroller (d) phone app
31. 31.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
32. 32.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
33. 33.🔢 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 app shows it (d) the sensor measures
34. 34.Which of these is an IoT device? (a) a smart energy meter (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
35. 35.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
36. 36.Which of these is not an IoT device? (a) a pencil sharpener (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a smart energy meter
37. 37.🔢 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
38. 38.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Things (d) Internet of Talk
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the actuator do? (a) measures the real world (b) stores data online (c) carries the data (d) acts on a command

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