Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 329 · 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) phone app (b) microcontroller (c) Wi-Fi (d) actuator
2. 2.What does the Wi-Fi link do? (a) carries the data (b) measures the real world (c) acts on a command (d) stores data online
3. 3.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) actuator (d) microcontroller
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a pencil sharpener (d) a smart energy meter
6. 6.Which of these is an IoT device? (a) a wind-up clock (b) a battery torch (c) an app-controlled bulb (d) a plain table fan
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
10. 10.What does the cloud server do? (a) shows data to you (b) stores data online (c) acts on a command (d) reads values, decides
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
13. 13.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a battery torch (d) a wind-up clock
14. 14.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
15. 15.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🏠 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
20. 20.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) stores data online
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) over Wi-Fi (d) through a candle
22. 22.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
23. 23.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
24. 24.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
26. 26.Which of these is an IoT device? (a) a plain wall switch (b) a Wi-Fi weather station (c) a battery torch (d) a paper calendar
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
28. 28.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the cloud stores it (d) it is sent by Wi-Fi
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 80 readings take?
30. 30.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
31. 31.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi weather station
32. 32.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) stores data online
33. 33.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) a Wi-Fi weather station
34. 34.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the cloud stores it (c) the sensor measures (d) the board reads it
35. 35.🌐 In an IoT system, which part acts on a command? (a) actuator (b) phone app (c) microcontroller (d) cloud server
36. 36.What does the phone app do? (a) carries the data (b) stores data online (c) reads values, decides (d) shows data to you
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) it is sent by Wi-Fi (b) the cloud stores it
38. 38.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the cloud stores it”? (a) the cloud stores it (b) the sensor measures
39. 39.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi smart plug
40. 40.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a fitness band with app (d) an app-controlled bulb

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