Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 405 · 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.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) by post (c) through a candle (d) over Wi-Fi
2. 2.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
3. 3.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
4. 4.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
5. 5.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 5 hours?
6. 6.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
7. 7.What does the sensor do? (a) carries the data (b) stores data online (c) acts on a command (d) measures the real world
8. 8.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a paper calendar (d) a Wi-Fi smart plug
9. 9.🔍 Which is the odd one out? (a) a plain table fan (b) a wind-up clock (c) a battery torch (d) a smart energy meter
10. 10.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a plain wall switch (d) a Wi-Fi smart plug
11. 11.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 4 minutes?
12. 12.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
14. 14.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 1 minute?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a plain wall switch (c) a Wi-Fi weather station (d) a plain table fan
16. 16.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi weather station (c) an app-controlled bulb (d) a plain table fan
17. 17.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?
18. 18.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
19. 19.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) sensor (c) Wi-Fi (d) cloud server
20. 20.🌐 Is a pencil sharpener an IoT device? (a) an IoT device (b) not an IoT device
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the cloud stores it (c) the app shows it (d) the sensor measures
22. 22.Which of these is an IoT device? (a) an app-controlled bulb (b) a wind-up clock (c) a plain wall switch (d) a pencil sharpener
23. 23.🌐 In an IoT system, which part shows data to you? (a) phone app (b) Wi-Fi (c) microcontroller (d) actuator
24. 24.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
25. 25.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
26. 26.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) phone app (c) actuator (d) sensor
27. 27.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
28. 28.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) the sensor measures (c) it is sent by Wi-Fi (d) the board reads it
29. 29.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 140 readings take?
30. 30.Which of these is not an IoT device? (a) an app-controlled bulb (b) a smart energy meter (c) a fitness band with app (d) a wind-up clock
31. 31.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
32. 32.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
33. 33.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 130 readings take?
34. 34.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 5 hours?
36. 36.🌐 Is a plain wall switch an IoT device? (a) an IoT device (b) not an IoT device
37. 37.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a pencil sharpener (d) a smart energy meter
39. 39.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
40. 40.🔍 Which is the odd one out? (a) a Wi-Fi weather station (b) a plain wall switch (c) an app-controlled bulb (d) a Wi-Fi smart plug

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