Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 295 · 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.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
2. 2.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) an app-controlled bulb (d) a battery torch
3. 3.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
5. 5.🏠 Which is a smart-home example? (a) a hand fan (b) a candle in a jar (c) lights on from an app (d) a printed map
6. 6.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the board reads it”? (a) the app shows it (b) the board reads it
8. 8.What does the actuator do? (a) shows data to you (b) carries the data (c) measures the real world (d) acts on a command
9. 9.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) a fitness band with app (d) a paper calendar
10. 10.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
11. 11.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
13. 13.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is an IoT device? (a) a smart energy meter (b) a pencil sharpener (c) a paper calendar (d) a wind-up clock
16. 16.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) sensor (d) cloud server
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
19. 19.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
21. 21.Which of these is an IoT device? (a) an app-controlled bulb (b) a battery torch (c) a wind-up clock (d) a pencil sharpener
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a plain wall switch (c) a Wi-Fi smart plug (d) a battery torch
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
24. 24.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) the sensor measures
25. 25.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi smart plug (c) a smart energy meter (d) an app-controlled bulb
26. 26.🌐 In an IoT system, which part measures the real world? (a) microcontroller (b) actuator (c) sensor (d) cloud server
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
28. 28.What does the cloud server do? (a) stores data online (b) measures the real world (c) carries the data (d) acts on a command
29. 29.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 40 readings take?
30. 30.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a pencil sharpener
32. 32.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
33. 33.What does the sensor do? (a) reads values, decides (b) acts on a command (c) stores data online (d) measures the real world
34. 34.What does the microcontroller do? (a) carries the data (b) shows data to you (c) stores data online (d) reads values, decides
35. 35.🌐 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
36. 36.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
38. 38.Which of these is not an IoT device? (a) a fitness band with app (b) a plain wall switch (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
39. 39.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?

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