Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 109 · 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.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) phone app (c) sensor (d) cloud server
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
3. 3.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) an app-controlled bulb (d) a plain wall switch
4. 4.What does the sensor do? (a) reads values, decides (b) stores data online (c) measures the real world (d) acts on a command
5. 5.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
7. 7.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) it is sent by Wi-Fi (b) the app shows it (c) the cloud stores it (d) the board reads it
8. 8.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
9. 9.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) it is sent by Wi-Fi
10. 10.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a fitness band with app
11. 11.🌐 In an IoT system, which part stores data online? (a) phone app (b) Wi-Fi (c) cloud server (d) sensor
12. 12.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
13. 13.What does the Wi-Fi link do? (a) reads values, decides (b) shows data to you (c) acts on a command (d) carries the data
14. 14.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
15. 15.What does the phone app do? (a) reads values, decides (b) shows data to you (c) carries the data (d) stores data online
16. 16.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi smart plug (d) a pencil sharpener
17. 17.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
18. 18.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
20. 20.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
21. 21.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
22. 22.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
23. 23.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
24. 24.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
26. 26.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
27. 27.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 1 minute?
28. 28.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a fitness band with app (d) a Wi-Fi weather station
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
30. 30.🔢 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
31. 31.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi weather station (d) a pencil sharpener
32. 32.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
34. 34.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
37. 37.🌐 In an IoT system, which part shows data to you? (a) phone app (b) actuator (c) Wi-Fi (d) cloud server
38. 38.What does the microcontroller do? (a) shows data to you (b) carries the data (c) reads values, decides (d) stores data online
39. 39.🌐 In an IoT system, which part acts on a command? (a) phone app (b) microcontroller (c) actuator (d) cloud server
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a paper calendar (d) a plain wall switch

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