Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 657 · 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.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
2. 2.What does the cloud server do? (a) reads values, decides (b) stores data online (c) shows data to you (d) acts on a command
3. 3.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 2 minutes?
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
5. 5.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a pencil sharpener (d) a Wi-Fi doorbell camera
6. 6.🌐 In an IoT system, which part measures the real world? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a Wi-Fi weather station (d) a battery torch
8. 8.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the board reads it (b) the sensor measures (c) the cloud stores it (d) the app shows it
9. 9.What does the sensor do? (a) reads values, decides (b) stores data online (c) acts on a command (d) measures the real world
10. 10.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) through a candle (c) by shouting (d) by post
11. 11.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
12. 12.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a plain wall switch (d) an app-controlled bulb
13. 13.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 6 minutes?
15. 15.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
16. 16.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a pencil sharpener (d) an app-controlled bulb
17. 17.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a fitness band with app
18. 18.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
19. 19.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) actuator (c) Wi-Fi (d) phone app
20. 20.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a wind-up clock (d) a plain wall switch
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
22. 22.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a paper calendar (d) a Wi-Fi smart plug
23. 23.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a fitness band with app (d) a pencil sharpener
24. 24.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) it is sent by Wi-Fi
26. 26.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) measures the real world
27. 27.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) the cloud stores it (b) it is sent by Wi-Fi
28. 28.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
29. 29.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) an app-controlled bulb (d) a wind-up clock
31. 31.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
33. 33.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
34. 34.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) actuator (c) cloud server (d) microcontroller
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 110 readings take?
36. 36.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
38. 38.What does the phone app do? (a) shows data to you (b) reads values, decides (c) acts on a command (d) measures the real world
39. 39.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
40. 40.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar

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