Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 962 · 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 soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
2. 2.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) phone app (d) cloud server
3. 3.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 200 readings take?
5. 5.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
6. 6.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a pencil sharpener (d) a fitness band with app
7. 7.🌐 In an IoT system, which part acts on a command? (a) sensor (b) phone app (c) actuator (d) Wi-Fi
8. 8.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
9. 9.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
10. 10.🏠 Which is a smart-home example? (a) a printed map (b) a candle in a jar (c) lights on from an app (d) a hand fan
11. 11.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
12. 12.What does the microcontroller do? (a) carries the data (b) reads values, decides (c) measures the real world (d) shows data to you
13. 13.🔍 Which is the odd one out? (a) a wind-up clock (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi weather station
14. 14.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is an IoT device? (a) a pencil sharpener (b) a Wi-Fi smart plug (c) a paper calendar (d) a battery torch
16. 16.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
17. 17.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
18. 18.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the board reads it”? (a) the board reads it (b) it is sent by Wi-Fi
19. 19.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 In an IoT system, which part stores data online? (a) microcontroller (b) actuator (c) phone app (d) cloud server
21. 21.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
22. 22.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
23. 23.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
24. 24.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
25. 25.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock
26. 26.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a smart energy meter
27. 27.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
28. 28.What does the actuator do? (a) acts on a command (b) reads values, decides (c) measures the real world (d) carries the data
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
30. 30.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
32. 32.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
33. 33.Which of these is an IoT device? (a) a pencil sharpener (b) a plain table fan (c) a paper calendar (d) a fitness band with app
34. 34.🔢 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
35. 35.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
36. 36.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a Wi-Fi weather station (c) a Wi-Fi doorbell camera (d) a plain wall switch
38. 38.🔍 Which is the odd one out? (a) a plain table fan (b) a fitness band with app (c) an app-controlled bulb (d) a smart energy meter
39. 39.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 150 readings take?
40. 40.Which of these is not an IoT device? (a) a plain wall switch (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug

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