Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 436 · 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.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) carries the data
2. 2.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) sensor (d) Wi-Fi
3. 3.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the cloud stores it
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a smart energy meter (c) a battery torch (d) a plain wall switch
6. 6.🌐 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
7. 7.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
8. 8.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi smart plug (d) a battery torch
9. 9.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a plain table fan (c) a battery torch (d) a plain wall switch
10. 10.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the board reads it (d) the sensor measures
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a battery torch (c) a pencil sharpener (d) a plain table fan
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 6 hours?
13. 13.Which of these is an IoT device? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a pencil sharpener
14. 14.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
16. 16.What does the actuator do? (a) acts on a command (b) shows data to you (c) measures the real world (d) reads values, decides
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a pencil sharpener (d) a plain table fan
18. 18.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
19. 19.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
20. 20.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
22. 22.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a Wi-Fi smart plug (d) a paper calendar
24. 24.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
28. 28.What does the phone app do? (a) stores data online (b) shows data to you (c) acts on a command (d) measures the real world
29. 29.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a Wi-Fi weather station
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
32. 32.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
33. 33.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
34. 34.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a plain wall switch (d) a Wi-Fi smart plug
35. 35.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) a Wi-Fi smart plug (d) an app-controlled bulb
36. 36.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a Wi-Fi smart plug (d) a fitness band with app
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
38. 38.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
39. 39.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) actuator (c) phone app (d) cloud server
40. 40.🔢 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

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