Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 728 · 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) an app-controlled bulb (b) a plain wall switch (c) a battery torch (d) a plain table fan
2. 2.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
3. 3.What does the sensor do? (a) shows data to you (b) acts on a command (c) reads values, decides (d) measures the real world
4. 4.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a smart energy meter (d) a plain wall switch
5. 5.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
7. 7.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a battery torch
8. 8.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
9. 9.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
10. 10.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a plain wall switch (c) a battery torch (d) a paper calendar
13. 13.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 140 readings take?
15. 15.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a wind-up clock
16. 16.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
18. 18.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the sensor measures (c) the board reads it (d) the app shows it
19. 19.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
20. 20.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) acts on a command (d) measures the real world
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
22. 22.🌐 In an IoT system, which part reads values, decides? (a) actuator (b) sensor (c) microcontroller (d) cloud server
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 190 readings take?
24. 24.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) Wi-Fi (d) sensor
25. 25.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
26. 26.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a smart energy meter (d) a plain wall switch
27. 27.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
28. 28.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
29. 29.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
30. 30.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
31. 31.What does the microcontroller do? (a) measures the real world (b) acts on a command (c) reads values, decides (d) shows data to you
32. 32.🌐 In an IoT system, which part stores data online? (a) sensor (b) Wi-Fi (c) microcontroller (d) cloud server
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a fitness band with app (d) a plain wall switch
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 3 minutes?
37. 37.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
38. 38.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
39. 39.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) actuator (d) microcontroller
40. 40.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device

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