Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 381 · 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.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) through a candle (d) by post
2. 2.Which of these is an IoT device? (a) a smart energy meter (b) a battery torch (c) a wind-up clock (d) a paper calendar
3. 3.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
4. 4.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
5. 5.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a paper calendar
7. 7.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a plain table fan
10. 10.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) cloud server (c) actuator (d) sensor
11. 11.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a smart energy meter
12. 12.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the cloud stores it
13. 13.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
15. 15.What does the sensor do? (a) shows data to you (b) carries the data (c) reads values, decides (d) measures the real world
16. 16.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) an app-controlled bulb
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
18. 18.What does the microcontroller do? (a) shows data to you (b) measures the real world (c) stores data online (d) reads values, decides
19. 19.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 20 readings take?
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a paper calendar (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
24. 24.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 90 readings take?
26. 26.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
27. 27.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
29. 29.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a paper calendar
30. 30.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the cloud stores it (d) the app shows it
32. 32.🏠 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
33. 33.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) phone app (d) Wi-Fi
34. 34.What does the phone app do? (a) shows data to you (b) acts on a command (c) measures the real world (d) stores data online
35. 35.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
36. 36.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) Wi-Fi (d) phone app
37. 37.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
38. 38.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
40. 40.Which of these is an IoT device? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) a fitness band with app

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