Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 235 · 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 of these is an IoT device? (a) a Wi-Fi smart plug (b) a wind-up clock (c) a plain wall switch (d) a battery torch
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
3. 3.What does the sensor do? (a) carries the data (b) measures the real world (c) reads values, decides (d) acts on a command
4. 4.Which of these is an IoT device? (a) a Wi-Fi weather station (b) a plain table fan (c) a battery torch (d) a paper calendar
5. 5.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the app shows it (d) the board reads it
6. 6.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 40 readings take?
7. 7.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
8. 8.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
9. 9.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a smart energy meter (d) a wind-up clock
10. 10.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a battery torch (d) an app-controlled bulb
11. 11.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
12. 12.🏠 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
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
14. 14.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
15. 15.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a paper calendar (d) a fitness band with app
16. 16.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
17. 17.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) sensor (d) phone app
18. 18.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 50 readings take?
19. 19.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 3 minutes?
20. 20.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the cloud stores it (b) the sensor measures (c) it is sent by Wi-Fi (d) the app shows it
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
22. 22.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) microcontroller
23. 23.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a Wi-Fi smart plug (d) a pencil sharpener
24. 24.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a smart energy meter (d) a battery torch
25. 25.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) cloud server (d) actuator
26. 26.🔍 Which is the odd one out? (a) a battery torch (b) a paper calendar (c) a plain wall switch (d) an app-controlled bulb
27. 27.🔍 Which is the odd one out? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) a fitness band with app
28. 28.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a battery torch
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi weather station (d) a plain table fan
30. 30.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
31. 31.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
32. 32.Which of these is not an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a smart energy meter
33. 33.🌐 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
34. 34.What does the actuator do? (a) acts on a command (b) carries the data (c) shows data to you (d) measures the real world
35. 35.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) it is sent by Wi-Fi (b) the sensor measures
37. 37.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 10 minutes?
38. 38.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 40 readings take?
39. 39.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools

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