Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 893 · 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 battery torch (b) a smart energy meter (c) a paper calendar (d) a plain wall switch
2. 2.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
3. 3.🔍 Which is the odd one out? (a) a wind-up clock (b) a plain wall switch (c) a paper calendar (d) a Wi-Fi doorbell camera
4. 4.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a fitness band with app (c) a wind-up clock (d) a smart energy meter
5. 5.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the cloud stores it
6. 6.🔢 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 board reads it (d) the cloud stores it
7. 7.Which of these is not an IoT device? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi doorbell camera (d) a wind-up clock
8. 8.🔍 Which is the odd one out? (a) a battery torch (b) a plain table fan (c) a Wi-Fi smart plug (d) a paper calendar
9. 9.What does the actuator do? (a) reads values, decides (b) acts on a command (c) carries the data (d) shows data to you
10. 10.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
11. 11.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 2 hours?
12. 12.Which of these is an IoT device? (a) a paper calendar (b) a pencil sharpener (c) a smart energy meter (d) a plain table fan
13. 13.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
14. 14.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
15. 15.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
16. 16.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) by post (d) through a candle
18. 18.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
19. 19.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 190 readings take?
20. 20.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) phone app (d) sensor
21. 21.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 In an IoT system, which part shows data to you? (a) sensor (b) microcontroller (c) Wi-Fi (d) phone app
23. 23.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
24. 24.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 2 hours?
25. 25.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 80 readings take?
26. 26.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
28. 28.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 fitness band with app
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 50 readings take?
30. 30.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a battery torch
31. 31.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
32. 32.🌐 In an IoT system, which part acts on a command? (a) actuator (b) cloud server (c) phone app (d) microcontroller
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
34. 34.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 30 readings take?
35. 35.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
36. 36.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
37. 37.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
38. 38.Which of these is not an IoT device? (a) a smart energy meter (b) a paper calendar (c) a fitness band with app (d) a Wi-Fi doorbell camera
39. 39.🔍 Which is the odd one out? (a) a plain wall switch (b) an app-controlled bulb (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
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) the cloud stores it (d) it is sent by Wi-Fi

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