Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 549 · 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.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) actuator (c) phone app (d) sensor
2. 2.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
3. 3.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
4. 4.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) over Wi-Fi (c) by shouting (d) through a candle
5. 5.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
6. 6.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a wind-up clock
7. 7.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
8. 8.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a smart energy meter (d) an app-controlled bulb
9. 9.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
10. 10.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a smart energy meter (d) a plain table fan
11. 11.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🏠 Which is a smart-home example? (a) lights on from an app (b) a printed map (c) a candle in a jar (d) a hand fan
13. 13.🔢 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) it is sent by Wi-Fi
14. 14.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain wall switch (c) a paper calendar (d) a battery torch
15. 15.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
16. 16.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a fitness band with app (d) a smart energy meter
17. 17.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
20. 20.What does the Wi-Fi link do? (a) carries the data (b) shows data to you (c) stores data online (d) acts on a command
21. 21.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a smart energy meter (d) a pencil sharpener
22. 22.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
25. 25.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a pencil sharpener
26. 26.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
27. 27.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
28. 28.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a battery torch (d) an app-controlled bulb
29. 29.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔢 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 app shows it (c) the sensor measures (d) the board reads it
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a Wi-Fi doorbell camera (c) a wind-up clock (d) a paper calendar
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 4 hours?
35. 35.What does the phone app do? (a) acts on a command (b) reads values, decides (c) shows data to you (d) measures the real world
36. 36.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
37. 37.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) sensor (c) Wi-Fi (d) actuator
38. 38.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a plain table fan
39. 39.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
40. 40.What does the actuator do? (a) carries the data (b) measures the real world (c) shows data to you (d) acts on a command

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