Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 974 · 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) a battery torch (c) an app-controlled bulb (d) a paper calendar
2. 2.What does the sensor do? (a) stores data online (b) measures the real world (c) reads values, decides (d) acts on a command
3. 3.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a paper calendar
4. 4.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
5. 5.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
6. 6.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by shouting (c) by post (d) through a candle
7. 7.🔍 Which is the odd one out? (a) a battery torch (b) a Wi-Fi doorbell camera (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
8. 8.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the cloud stores it (b) the board reads it (c) the sensor measures (d) it is sent by Wi-Fi
9. 9.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🔍 Which is the odd one out? (a) a wind-up clock (b) a smart energy meter (c) a battery torch (d) a paper calendar
11. 11.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Things (c) Inside of Toys (d) Internet of Talk
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 2 minutes?
13. 13.What does the actuator do? (a) shows data to you (b) stores data online (c) acts on a command (d) carries the data
14. 14.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 6 hours?
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
16. 16.🏠 Which is a smart-home example? (a) a hand fan (b) a printed map (c) a candle in a jar (d) lights on from an app
17. 17.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a Wi-Fi weather station (d) a Wi-Fi doorbell camera
18. 18.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 4 minutes?
19. 19.Which of these is an IoT device? (a) a paper calendar (b) a battery torch (c) a Wi-Fi smart plug (d) a pencil sharpener
20. 20.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a plain wall switch (c) a Wi-Fi smart plug (d) an app-controlled bulb
21. 21.What does the cloud server do? (a) acts on a command (b) shows data to you (c) measures the real world (d) stores data online
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a Wi-Fi smart plug (c) a wind-up clock (d) a smart energy meter
23. 23.🌐 Is a Wi-Fi weather station an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?
25. 25.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
26. 26.What does the microcontroller do? (a) reads values, decides (b) acts on a command (c) measures the real world (d) shows data to you
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the app shows it (c) the board reads it (d) it is sent by Wi-Fi
28. 28.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) cloud server (d) phone app
29. 29.🌐 In an IoT system, which part acts on a command? (a) sensor (b) Wi-Fi (c) actuator (d) phone app
30. 30.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
31. 31.🔢 To get a sensor reading onto a phone, what comes right after “the board reads it”? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the cloud stores it
32. 32.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
34. 34.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
35. 35.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
36. 36.🌐 In an IoT system, which part carries the data? (a) actuator (b) phone app (c) cloud server (d) Wi-Fi
37. 37.Which of these is an IoT device? (a) a battery torch (b) a plain wall switch (c) a plain table fan (d) a Wi-Fi weather station
38. 38.🌐 In an IoT system, which part measures the real world? (a) phone app (b) Wi-Fi (c) actuator (d) sensor
39. 39.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 120 readings take?
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 5 minutes?

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