Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 790 · 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 cloud server do? (a) reads values, decides (b) measures the real world (c) acts on a command (d) stores data online
2. 2.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a Wi-Fi smart plug (d) a pencil sharpener
3. 3.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a hand fan (d) a candle in a jar
4. 4.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the sensor measures
5. 5.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) actuator (d) phone app
7. 7.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a smart energy meter (d) a fitness band with app
8. 8.🔍 Which is the odd one out? (a) a pencil sharpener (b) a plain table fan (c) a Wi-Fi weather station (d) a battery torch
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 app shows it (c) the cloud stores it (d) the board reads it
10. 10.🌐 In an IoT system, which part carries the data? (a) Wi-Fi (b) cloud server (c) phone app (d) actuator
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a battery torch (d) a Wi-Fi doorbell camera
12. 12.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 4 minutes?
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
15. 15.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a smart energy meter
16. 16.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
17. 17.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
18. 18.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
19. 19.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 5 hours?
20. 20.🔢 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
21. 21.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
22. 22.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) acts on a command (d) shows data to you
23. 23.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a smart energy meter
24. 24.Which of these is an IoT device? (a) a plain wall switch (b) a battery torch (c) a pencil sharpener (d) a smart energy meter
25. 25.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
26. 26.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
27. 27.Which of these is an IoT device? (a) a plain table fan (b) an app-controlled bulb (c) a paper calendar (d) a plain wall switch
28. 28.🌐 In an IoT system, which part acts on a command? (a) cloud server (b) microcontroller (c) actuator (d) phone app
29. 29.🌐 In an IoT system, which part shows data to you? (a) actuator (b) microcontroller (c) phone app (d) Wi-Fi
30. 30.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
31. 31.What does the phone app do? (a) carries the data (b) measures the real world (c) stores data online (d) shows data to you
32. 32.What does the microcontroller do? (a) stores data online (b) shows data to you (c) acts on a command (d) reads values, decides
33. 33.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
34. 34.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
35. 35.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
37. 37.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 120 readings take?
39. 39.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?

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