Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 227 · 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 plain wall switch (b) an app-controlled bulb (c) a wind-up clock (d) a pencil sharpener
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 180 readings take?
3. 3.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
4. 4.🌐 What does IoT stand for? (a) Internet of Talk (b) Internet of Things (c) Input of Tools (d) Inside of Toys
5. 5.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) by shouting (c) through a candle (d) over Wi-Fi
6. 6.Which of these is an IoT device? (a) a plain table fan (b) a plain wall switch (c) a pencil sharpener (d) a Wi-Fi weather station
7. 7.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a fitness band with app (c) a paper calendar (d) a smart energy meter
9. 9.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the cloud stores it (c) it is sent by Wi-Fi (d) the board reads it
11. 11.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a pencil sharpener (c) a Wi-Fi smart plug (d) a Wi-Fi doorbell camera
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the sensor measures”? (a) the sensor measures (b) the board reads it
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
15. 15.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 1 minute?
16. 16.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
17. 17.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?
18. 18.🔍 Which is the odd one out? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi smart plug (d) a battery torch
19. 19.🔍 Which is the odd one out? (a) a plain wall switch (b) a Wi-Fi weather station (c) a pencil sharpener (d) a battery torch
20. 20.🏠 Which is a smart-home example? (a) a printed map (b) lights on from an app (c) a candle in a jar (d) a hand fan
21. 21.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
23. 23.🌐 In an IoT system, which part shows data to you? (a) phone app (b) sensor (c) microcontroller (d) Wi-Fi
24. 24.🔍 Which is the odd one out? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a battery torch
25. 25.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a battery torch (c) a pencil sharpener (d) a wind-up clock
26. 26.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
27. 27.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a Wi-Fi doorbell camera (d) a wind-up clock
28. 28.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
30. 30.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
31. 31.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
32. 32.What does the actuator do? (a) carries the data (b) shows data to you (c) acts on a command (d) stores data online
33. 33.What does the sensor do? (a) acts on a command (b) stores data online (c) measures the real world (d) shows data to you
34. 34.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) a Wi-Fi doorbell camera (d) a Wi-Fi smart plug
35. 35.🌐 Is a Wi-Fi doorbell camera 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.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) the sensor measures
38. 38.🌐 In an IoT system, which part measures the real world? (a) phone app (b) sensor (c) microcontroller (d) actuator
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
40. 40.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a wind-up clock (c) a smart energy meter (d) a Wi-Fi doorbell camera

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