Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 646 · 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 app shows it” or “the sensor measures”? (a) the sensor measures (b) the app shows it
2. 2.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 200 readings take?
3. 3.Which of these is not an IoT device? (a) a Wi-Fi weather station (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
4. 4.🔢 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
5. 5.Which of these is not an IoT device? (a) a smart energy meter (b) an app-controlled bulb (c) a Wi-Fi smart plug (d) a pencil sharpener
6. 6.What does the phone app do? (a) reads values, decides (b) shows data to you (c) measures the real world (d) carries the data
7. 7.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 4 hours?
8. 8.🌐 Is an app-controlled bulb an IoT device? (a) not an IoT device (b) an IoT device
9. 9.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
10. 10.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) an IoT device (b) not an IoT device
11. 11.🌐 What does IoT stand for? (a) Internet of Talk (b) Inside of Toys (c) Input of Tools (d) Internet of Things
12. 12.🔍 Which is the odd one out? (a) a plain table fan (b) a smart energy meter (c) a Wi-Fi doorbell camera (d) a Wi-Fi weather station
13. 13.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 10 minutes?
14. 14.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 110 readings take?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a pencil sharpener (c) a battery torch (d) a Wi-Fi smart plug
16. 16.🌐 Is a smart energy meter an IoT device? (a) an IoT device (b) not an IoT device
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
18. 18.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) it is sent by Wi-Fi (b) the board reads it (c) the app shows it (d) the sensor measures
19. 19.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
20. 20.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 7 minutes?
21. 21.🔢 To get a sensor reading onto a phone, what comes right after “it is sent by Wi-Fi”? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
22. 22.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
23. 23.🏠 Which is a smart-home example? (a) a candle in a jar (b) a hand fan (c) lights on from an app (d) a printed map
24. 24.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 3 hours?
25. 25.🔍 Which is the odd one out? (a) a smart energy meter (b) a wind-up clock (c) an app-controlled bulb (d) a Wi-Fi smart plug
26. 26.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) sensor (c) phone app (d) microcontroller
27. 27.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
28. 28.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a smart energy meter (b) a fitness band with app (c) a Wi-Fi smart plug (d) a battery torch
30. 30.Which of these is an IoT device? (a) a plain table fan (b) a wind-up clock (c) a pencil sharpener (d) an app-controlled bulb
31. 31.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
32. 32.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
33. 33.What does the cloud server do? (a) measures the real world (b) stores data online (c) acts on a command (d) reads values, decides
34. 34.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a wind-up clock (d) a pencil sharpener
35. 35.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a smart energy meter
36. 36.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
37. 37.Which of these is an IoT device? (a) a battery torch (b) a pencil sharpener (c) a plain table fan (d) a Wi-Fi weather station
38. 38.🌐 In an IoT system, which part acts on a command? (a) microcontroller (b) cloud server (c) Wi-Fi (d) actuator
39. 39.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 30 readings take?
40. 40.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?

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