Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 583 · 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 comes first: “the board reads it” or “the app shows it”? (a) the board reads it (b) the app shows it
2. 2.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
3. 3.Which of these is an IoT device? (a) an app-controlled bulb (b) a paper calendar (c) a plain wall switch (d) a pencil sharpener
4. 4.🌐 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
5. 5.What does the actuator do? (a) shows data to you (b) measures the real world (c) acts on a command (d) reads values, decides
6. 6.What does the microcontroller do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
7. 7.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 3 minutes?
8. 8.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the app shows it (c) the sensor measures (d) the board reads it
9. 9.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) actuator (c) phone app (d) sensor
10. 10.🏠 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
11. 11.🔍 Which is the odd one out? (a) a fitness band with app (b) a wind-up clock (c) a Wi-Fi weather station (d) an app-controlled bulb
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 100 readings take?
13. 13.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a smart energy meter (c) a fitness band with app (d) a paper calendar
14. 14.Which of these is not an IoT device? (a) a battery torch (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi smart plug
15. 15.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
16. 16.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
17. 17.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 7 minutes?
18. 18.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
19. 19.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) the board reads it (b) it is sent by Wi-Fi
20. 20.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
21. 21.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the sensor measures (b) the app shows it (c) the cloud stores it (d) it is sent by Wi-Fi
22. 22.🔢 To get a sensor reading onto a phone, which comes first: “the sensor measures” or “the board reads it”? (a) the board reads it (b) the sensor measures
23. 23.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
24. 24.🌐 In an IoT system, which part reads values, decides? (a) microcontroller (b) cloud server (c) actuator (d) Wi-Fi
25. 25.What does the phone app do? (a) stores data online (b) reads values, decides (c) shows data to you (d) carries the data
26. 26.Which of these is an IoT device? (a) a pencil sharpener (b) a wind-up clock (c) a battery torch (d) a fitness band with app
27. 27.What does the sensor do? (a) carries the data (b) stores data online (c) measures the real world (d) acts on a command
28. 28.🌐 In an IoT system, which part measures the real world? (a) phone app (b) actuator (c) sensor (d) Wi-Fi
29. 29.What does the cloud server do? (a) acts on a command (b) stores data online (c) reads values, decides (d) carries the data
30. 30.🌐 Is a pencil sharpener an IoT device? (a) not an IoT device (b) an IoT device
31. 31.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 7 minutes?
32. 32.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a wind-up clock (d) a plain wall switch
33. 33.Which of these is an IoT device? (a) a plain table fan (b) a pencil sharpener (c) a Wi-Fi doorbell camera (d) a wind-up clock
34. 34.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) measures the real world
35. 35.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 160 readings take?
36. 36.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a wind-up clock (d) a Wi-Fi smart plug
37. 37.🌐 What does IoT stand for? (a) Input of Tools (b) Inside of Toys (c) Internet of Talk (d) Internet of Things
38. 38.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a fitness band with app (d) a plain table fan
39. 39.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 6 minutes?
40. 40.🔍 Which is the odd one out? (a) a plain wall switch (b) a battery torch (c) a paper calendar (d) a Wi-Fi doorbell camera

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