Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 910 · 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 is the odd one out? (a) a Wi-Fi weather station (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi smart plug
2. 2.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 120 readings take?
3. 3.🌐 In an IoT system, which part measures the real world? (a) actuator (b) cloud server (c) sensor (d) Wi-Fi
4. 4.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
5. 5.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
6. 6.Which of these is an IoT device? (a) a plain wall switch (b) a paper calendar (c) a smart energy meter (d) a battery torch
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a battery torch (d) a smart energy meter
8. 8.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
9. 9.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Things (d) Internet of Talk
10. 10.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a fitness band with app (d) an app-controlled bulb
11. 11.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a paper calendar (d) a battery torch
12. 12.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
13. 13.What does the cloud server do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world
14. 14.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
15. 15.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) the sensor measures (c) the board reads it (d) the cloud stores it
16. 16.🌐 In an IoT system, which part stores data online? (a) sensor (b) phone app (c) Wi-Fi (d) cloud server
17. 17.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 9 minutes?
19. 19.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a plain wall switch
20. 20.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
21. 21.🔢 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
22. 22.What does the sensor do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) a pencil sharpener (d) a Wi-Fi smart plug
25. 25.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) phone app (d) microcontroller
26. 26.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
27. 27.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a fitness band with app (d) a pencil sharpener
29. 29.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
30. 30.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) the app shows it
31. 31.What does the phone app do? (a) shows data to you (b) measures the real world (c) carries the data (d) reads values, decides
32. 32.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the board reads it
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
34. 34.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) phone app (d) cloud server
35. 35.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
36. 36.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
37. 37.Which of these is not an IoT device? (a) an app-controlled bulb (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi doorbell camera
38. 38.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) an app-controlled bulb
39. 39.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 1 hour?
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 9 minutes?

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