Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 380 · 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.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a paper calendar (d) a Wi-Fi smart plug
2. 2.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
3. 3.🔍 Which is the odd one out? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a pencil sharpener
4. 4.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) actuator (d) sensor
5. 5.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Inside of Toys (d) Input of Tools
6. 6.What does the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) stores data online
7. 7.🌐 In an IoT system, which part stores data online? (a) cloud server (b) phone app (c) sensor (d) microcontroller
8. 8.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi smart plug
9. 9.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
10. 10.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi doorbell camera (d) a plain table fan
11. 11.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
13. 13.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
17. 17.🌐 In an IoT system, which part carries the data? (a) actuator (b) Wi-Fi (c) phone app (d) cloud server
18. 18.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a pencil sharpener (d) a fitness band with app
19. 19.Which of these is an IoT device? (a) a battery torch (b) a plain table fan (c) an app-controlled bulb (d) a paper calendar
20. 20.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
22. 22.🔍 Which is the odd one out? (a) a plain table fan (b) a battery torch (c) an app-controlled bulb (d) a wind-up clock
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a fitness band with app (d) a paper calendar
24. 24.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🌐 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
26. 26.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
28. 28.What does the sensor do? (a) measures the real world (b) carries the data (c) reads values, decides (d) shows data to you
29. 29.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
30. 30.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
31. 31.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 4 minutes?
32. 32.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a fitness band with app (d) a wind-up clock
33. 33.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) microcontroller (d) Wi-Fi
34. 34.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the sensor measures (b) the board reads it
35. 35.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
36. 36.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 170 readings take?
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
39. 39.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
40. 40.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device

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