Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 633 · 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 Wi-Fi link do? (a) carries the data (b) measures the real world (c) stores data online (d) reads values, decides
2. 2.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
3. 3.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a paper calendar (d) a fitness band with app
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
6. 6.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
7. 7.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
8. 8.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “it is sent by Wi-Fi”? (a) the sensor measures (b) it is sent by Wi-Fi
9. 9.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a battery torch (d) a fitness band with app
10. 10.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain wall switch (d) a Wi-Fi weather station
11. 11.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) an app-controlled bulb (d) a battery torch
12. 12.What does the microcontroller do? (a) carries the data (b) measures the real world (c) shows data to you (d) reads values, decides
13. 13.🌐 In an IoT system, which part shows data to you? (a) actuator (b) cloud server (c) phone app (d) Wi-Fi
14. 14.What does the sensor do? (a) measures the real world (b) reads values, decides (c) stores data online (d) carries the data
15. 15.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) by shouting (d) over Wi-Fi
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
17. 17.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a plain wall switch
18. 18.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a paper calendar (d) a Wi-Fi smart plug
19. 19.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
21. 21.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a battery torch
22. 22.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
23. 23.🔢 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
24. 24.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
25. 25.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 80 readings take?
26. 26.Which of these is an IoT device? (a) a battery torch (b) a wind-up clock (c) a Wi-Fi smart plug (d) a paper calendar
27. 27.What does the cloud server do? (a) measures the real world (b) carries the data (c) stores data online (d) reads values, decides
28. 28.🌐 In an IoT system, which part carries the data? (a) cloud server (b) phone app (c) sensor (d) Wi-Fi
29. 29.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
30. 30.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
31. 31.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Internet of Talk (d) Inside of Toys
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a Wi-Fi weather station (d) a wind-up clock
33. 33.What does the actuator do? (a) acts on a command (b) stores data online (c) shows data to you (d) measures the real world
34. 34.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a plain wall switch
35. 35.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
37. 37.Which of these is an IoT device? (a) a paper calendar (b) an app-controlled bulb (c) a plain wall switch (d) a wind-up clock
38. 38.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
40. 40.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) it is sent by Wi-Fi (d) the cloud stores it

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