Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 364 · 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 microcontroller do? (a) reads values, decides (b) carries the data (c) shows data to you (d) measures the real world
2. 2.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 6 hours?
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a smart energy meter
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.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Things (c) Input of Tools (d) Internet of Talk
7. 7.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) sensor (c) phone app (d) cloud server
8. 8.What does the Wi-Fi link do? (a) stores data online (b) reads values, decides (c) acts on a command (d) carries the data
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
10. 10.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a fitness band with app (d) a plain table fan
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
12. 12.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
14. 14.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is an IoT device? (a) a Wi-Fi doorbell camera (b) a paper calendar (c) a wind-up clock (d) a battery torch
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the cloud stores it (b) the sensor measures
17. 17.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the sensor measures
18. 18.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
20. 20.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
22. 22.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) lights on from an app (d) a hand fan
23. 23.🌐 In an IoT system, which part stores data online? (a) actuator (b) cloud server (c) sensor (d) microcontroller
24. 24.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by post (d) by shouting
25. 25.🌐 In an IoT system, which part shows data to you? (a) phone app (b) microcontroller (c) actuator (d) Wi-Fi
26. 26.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain table fan
27. 27.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) microcontroller
28. 28.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
29. 29.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a paper calendar (d) a battery torch
30. 30.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a Wi-Fi weather station (d) a paper calendar
31. 31.What does the cloud server do? (a) shows data to you (b) carries the data (c) acts on a command (d) stores data online
32. 32.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
33. 33.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
34. 34.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 9 minutes?
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
36. 36.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
38. 38.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a pencil sharpener
39. 39.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
40. 40.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a pencil sharpener (d) a wind-up clock

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