Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 66 · 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 wall switch (b) a Wi-Fi smart plug (c) a battery torch (d) a pencil sharpener
2. 2.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) a fitness band with app (d) a Wi-Fi weather station
3. 3.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
4. 4.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) Wi-Fi
5. 5.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a fitness band with app (c) an app-controlled bulb (d) a wind-up clock
6. 6.🔍 Which is the odd one out? (a) a plain wall switch (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a plain table fan
7. 7.🔍 Which is the odd one out? (a) a smart energy meter (b) a plain wall switch (c) a Wi-Fi weather station (d) an app-controlled bulb
8. 8.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 100 readings take?
10. 10.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the board reads it (c) the cloud stores it (d) the app shows it
11. 11.What does the microcontroller do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
12. 12.Which of these is an IoT device? (a) a battery torch (b) a fitness band with app (c) a plain wall switch (d) a pencil sharpener
13. 13.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
15. 15.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a battery torch (d) a plain table fan
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) microcontroller (c) phone app (d) Wi-Fi
19. 19.What does the sensor do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
20. 20.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
22. 22.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain table fan (d) a plain wall switch
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
24. 24.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
26. 26.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
27. 27.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a plain table fan (d) an app-controlled bulb
28. 28.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) cloud server (d) phone app
29. 29.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
32. 32.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
33. 33.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
34. 34.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Internet of Talk (d) Input of Tools
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi weather station
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the cloud stores it”? (a) the app shows it (b) the cloud stores it
38. 38.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
39. 39.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
40. 40.🔍 Which is the odd one out? (a) a wind-up clock (b) a fitness band with app (c) a pencil sharpener (d) a battery torch

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