Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 546 · 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.🌐 Is a plain table fan an IoT device? (a) an IoT device (b) not an IoT device
2. 2.🌐 In an IoT system, which part acts on a command? (a) actuator (b) Wi-Fi (c) phone app (d) microcontroller
3. 3.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 150 readings take?
5. 5.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain table fan (c) a paper calendar (d) a plain wall switch
6. 6.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “the sensor measures”? (a) the app shows it (b) the sensor measures
7. 7.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) the app shows it (b) it is sent by Wi-Fi (c) the sensor measures (d) the board reads it
8. 8.Which of these is an IoT device? (a) a plain wall switch (b) a wind-up clock (c) a plain table fan (d) a Wi-Fi doorbell camera
9. 9.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Input of Tools (d) Inside of Toys
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.What does the cloud server do? (a) stores data online (b) reads values, decides (c) acts on a command (d) shows data to you
12. 12.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 40 readings take?
13. 13.Which of these is not an IoT device? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a wind-up clock
14. 14.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 8 minutes?
15. 15.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 190 readings take?
16. 16.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) phone app (d) cloud server
17. 17.🔍 Which is the odd one out? (a) a paper calendar (b) a battery torch (c) a plain wall switch (d) a Wi-Fi weather station
18. 18.What does the sensor do? (a) stores data online (b) reads values, decides (c) measures the real world (d) shows data to you
19. 19.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
20. 20.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) a paper calendar
21. 21.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) it is sent by Wi-Fi (b) the sensor measures (c) the app shows it (d) the board reads it
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 9 minutes?
23. 23.🌐 How does a home IoT device usually send its data to the app? (a) over Wi-Fi (b) by post (c) through a candle (d) by shouting
24. 24.🌐 Is a Wi-Fi smart plug an IoT device? (a) an IoT device (b) not an IoT device
25. 25.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a fitness band with app (c) a battery torch (d) a Wi-Fi smart plug
26. 26.🌐 In an IoT system, which part shows data to you? (a) sensor (b) cloud server (c) phone app (d) microcontroller
27. 27.🔢 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
28. 28.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) phone app (c) microcontroller (d) actuator
29. 29.🌐 In an IoT system, which part measures the real world? (a) Wi-Fi (b) sensor (c) actuator (d) phone app
30. 30.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 3 minutes?
31. 31.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) cloud server (c) sensor (d) Wi-Fi
32. 32.What does the Wi-Fi link do? (a) stores data online (b) acts on a command (c) carries the data (d) reads values, decides
33. 33.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
34. 34.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
35. 35.Which of these is not an IoT device? (a) a fitness band with app (b) a battery torch (c) a smart energy meter (d) an app-controlled bulb
36. 36.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a pencil sharpener (c) a smart energy meter (d) a Wi-Fi doorbell camera
37. 37.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a plain table fan (d) a Wi-Fi weather station
38. 38.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
39. 39.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 110 readings take?
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?

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