Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 976 · 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.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
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 paper calendar
3. 3.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the cloud stores it (c) the board reads it (d) the sensor measures
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
5. 5.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
6. 6.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a Wi-Fi doorbell camera (d) a wind-up clock
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
10. 10.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a smart energy meter (d) a Wi-Fi weather station
11. 11.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) an app-controlled bulb
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
13. 13.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) actuator (c) sensor (d) cloud server
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
15. 15.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
16. 16.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a smart energy meter
17. 17.What does the Wi-Fi link do? (a) reads values, decides (b) measures the real world (c) stores data online (d) carries the data
18. 18.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a plain table fan
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
20. 20.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
22. 22.What does the cloud server do? (a) reads values, decides (b) stores data online (c) carries the data (d) measures the real world
23. 23.🌐 What does IoT stand for? (a) Internet of Things (b) Inside of Toys (c) Internet of Talk (d) Input of Tools
24. 24.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
25. 25.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
26. 26.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
27. 27.What does the actuator do? (a) reads values, decides (b) carries the data (c) acts on a command (d) stores data online
28. 28.Which of these is not an IoT device? (a) a plain table fan (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi weather station
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
31. 31.🌐 In an IoT system, which part acts on a command? (a) Wi-Fi (b) phone app (c) sensor (d) actuator
32. 32.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
33. 33.Which of these is an IoT device? (a) an app-controlled bulb (b) a plain wall switch (c) a battery torch (d) a pencil sharpener
34. 34.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 60 readings take?
38. 38.🔢 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) it is sent by Wi-Fi (d) the board reads it
39. 39.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?

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