Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 154 · 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.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the board reads it (b) the app shows it (c) the sensor measures (d) it is sent by Wi-Fi
2. 2.🏠 Which is a smart-home example? (a) a candle in a jar (b) a printed map (c) a hand fan (d) lights on from an app
3. 3.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
4. 4.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
5. 5.Which of these is an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) a pencil sharpener (d) a plain wall switch
6. 6.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
7. 7.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
8. 8.What does the phone app do? (a) reads values, decides (b) stores data online (c) measures the real world (d) shows data to you
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
10. 10.🌐 In an IoT system, which part stores data online? (a) actuator (b) Wi-Fi (c) cloud server (d) microcontroller
11. 11.What does the actuator do? (a) shows data to you (b) acts on a command (c) stores data online (d) reads values, decides
12. 12.🌐 In an IoT system, which part measures the real world? (a) sensor (b) microcontroller (c) actuator (d) phone app
13. 13.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
14. 14.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
15. 15.Which of these is an IoT device? (a) a battery torch (b) a smart energy meter (c) a plain wall switch (d) a plain table fan
16. 16.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
18. 18.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by shouting (c) over Wi-Fi (d) by post
20. 20.Which of these is an IoT device? (a) a wind-up clock (b) a fitness band with app (c) a plain wall switch (d) a battery torch
21. 21.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 60 readings take?
22. 22.🔍 Which is the odd one out? (a) a pencil sharpener (b) a battery torch (c) a plain table fan (d) a Wi-Fi doorbell camera
23. 23.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a paper calendar
24. 24.🌐 In an IoT system, which part reads values, decides? (a) cloud server (b) sensor (c) phone app (d) microcontroller
25. 25.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) stores data online (d) measures the real world
26. 26.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a pencil sharpener
27. 27.What does the Wi-Fi link do? (a) carries the data (b) acts on a command (c) shows data to you (d) measures the real world
28. 28.🔍 Which is the odd one out? (a) a plain wall switch (b) a fitness band with app (c) an app-controlled bulb (d) a Wi-Fi weather station
29. 29.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
30. 30.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
32. 32.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 20 readings take?
33. 33.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
34. 34.What does the microcontroller do? (a) reads values, decides (b) shows data to you (c) stores data online (d) acts on a command
35. 35.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a fitness band with app (c) a plain wall switch (d) a smart energy meter
36. 36.🌐 In an IoT system, which part carries the data? (a) phone app (b) actuator (c) Wi-Fi (d) cloud server
37. 37.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
38. 38.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
40. 40.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 5 minutes?

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