Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 889 · 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 plain wall switch (b) an app-controlled bulb (c) a paper calendar (d) a pencil sharpener
2. 2.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the cloud stores it (d) the sensor measures
3. 3.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 1 minute?
4. 4.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
5. 5.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a Wi-Fi doorbell camera (d) a battery torch
6. 6.🔍 Which is the odd one out? (a) a smart energy meter (b) a paper calendar (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
7. 7.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) a plain wall switch (d) a fitness band with app
8. 8.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
9. 9.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) over Wi-Fi (d) by shouting
10. 10.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) microcontroller (c) actuator (d) sensor
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) an app-controlled bulb (d) a wind-up clock
12. 12.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the sensor measures”? (a) the sensor measures (b) the cloud stores it
13. 13.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the sensor measures”? (a) the sensor measures (b) it is sent by Wi-Fi
15. 15.🌐 What does IoT stand for? (a) Inside of Toys (b) Input of Tools (c) Internet of Talk (d) Internet of Things
16. 16.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) a plain table fan (d) a pencil sharpener
17. 17.What does the sensor do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world
18. 18.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi smart plug (c) a paper calendar (d) a plain wall switch
19. 19.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a pencil sharpener (c) a paper calendar (d) an app-controlled bulb
21. 21.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
22. 22.🔢 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
23. 23.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
24. 24.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 60 readings take?
25. 25.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
26. 26.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
27. 27.Which of these is an IoT device? (a) a paper calendar (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi doorbell camera
28. 28.What does the microcontroller do? (a) stores data online (b) shows data to you (c) measures the real world (d) reads values, decides
29. 29.🌐 In an IoT system, which part shows data to you? (a) cloud server (b) phone app (c) Wi-Fi (d) actuator
30. 30.🌐 In an IoT system, which part acts on a command? (a) actuator (b) microcontroller (c) Wi-Fi (d) sensor
31. 31.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
32. 32.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?
33. 33.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
35. 35.🔍 Which is the odd one out? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a Wi-Fi weather station
36. 36.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the cloud stores it (b) the sensor measures (c) the app shows it (d) the board reads it
37. 37.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 200 readings take?
38. 38.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a paper calendar (c) a battery torch (d) a plain table fan
39. 39.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 130 readings take?

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