Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 33 · 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.What does the Wi-Fi link do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
2. 2.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 10 minutes?
3. 3.Which of these is not an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a smart energy meter (d) a Wi-Fi smart plug
4. 4.What does the actuator do? (a) carries the data (b) acts on a command (c) stores data online (d) measures the real world
5. 5.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 5 minutes?
6. 6.🌐 In an IoT system, which part stores data online? (a) cloud server (b) actuator (c) sensor (d) phone app
7. 7.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 2 minutes?
8. 8.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🔍 Which is the odd one out? (a) a wind-up clock (b) a Wi-Fi doorbell camera (c) a plain wall switch (d) a plain table fan
10. 10.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
11. 11.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 100 readings take?
12. 12.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 How does a home IoT device usually send its data to the app? (a) through a candle (b) by post (c) by shouting (d) over Wi-Fi
14. 14.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
15. 15.🏠 Which is a smart-home example? (a) lights on from an app (b) a hand fan (c) a printed map (d) a candle in a jar
16. 16.🔢 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 board reads it (d) the sensor measures
17. 17.Which of these is an IoT device? (a) a wind-up clock (b) a plain table fan (c) a plain wall switch (d) a Wi-Fi weather station
18. 18.🔍 Which is the odd one out? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a wind-up clock
19. 19.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a wind-up clock (d) a plain wall switch
20. 20.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
21. 21.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 150 readings take?
22. 22.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain table fan (c) an app-controlled bulb (d) a smart energy meter
23. 23.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 10 minutes?
24. 24.🔢 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
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the cloud stores it (b) the board reads it
26. 26.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 1 hour?
27. 27.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
28. 28.🌐 In an IoT system, which part carries the data? (a) actuator (b) cloud server (c) Wi-Fi (d) phone app
29. 29.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
30. 30.🔍 Which is the odd one out? (a) a plain wall switch (b) a plain table fan (c) a smart energy meter (d) a paper calendar
31. 31.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a paper calendar
32. 32.What does the cloud server do? (a) reads values, decides (b) shows data to you (c) stores data online (d) carries the data
33. 33.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
34. 34.What does the microcontroller do? (a) stores data online (b) acts on a command (c) reads values, decides (d) measures the real world
35. 35.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
37. 37.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 6 minutes?
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?

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