Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 912 · 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 cloud stores it” or “the app shows it”? (a) the cloud stores it (b) the app shows it
2. 2.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the board reads it (c) the app shows it (d) it is sent by Wi-Fi
3. 3.🌐 In an IoT system, which part stores data online? (a) phone app (b) actuator (c) microcontroller (d) cloud server
4. 4.🔢 To get a sensor reading onto a phone, what comes right after “the cloud stores it”? (a) the sensor measures (b) the board reads it (c) it is sent by Wi-Fi (d) the app shows it
5. 5.Which of these is not an IoT device? (a) an app-controlled bulb (b) a fitness band with app (c) a pencil sharpener (d) a smart energy meter
6. 6.🔍 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
7. 7.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
8. 8.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a plain table fan (c) a battery torch (d) a plain wall switch
9. 9.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
10. 10.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a printed map (d) a hand fan
11. 11.🌐 Is a wind-up clock an IoT device? (a) an IoT device (b) not an IoT device
12. 12.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 1 minute?
13. 13.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) phone app (c) sensor (d) microcontroller
14. 14.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 3 minutes?
15. 15.🔍 Which is the odd one out? (a) a paper calendar (b) a wind-up clock (c) a plain table fan (d) a smart energy meter
16. 16.🔍 Which is the odd one out? (a) a fitness band with app (b) an app-controlled bulb (c) a wind-up clock (d) a Wi-Fi doorbell camera
17. 17.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 70 readings take?
18. 18.🌐 How does a home IoT device usually send its data to the app? (a) by shouting (b) over Wi-Fi (c) through a candle (d) by post
19. 19.🌐 Is a plain wall switch an IoT device? (a) not an IoT device (b) an IoT device
20. 20.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
21. 21.🌐 What does IoT stand for? (a) Inside of Toys (b) Internet of Talk (c) Internet of Things (d) Input of Tools
22. 22.What does the cloud server do? (a) shows data to you (b) carries the data (c) stores data online (d) reads values, decides
23. 23.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
24. 24.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi weather station (c) a plain table fan (d) a fitness band with app
25. 25.🌐 A weather station sends one reading every 15 seconds. How many readings does it send in 8 minutes?
26. 26.Which of these is not an IoT device? (a) a Wi-Fi smart plug (b) a smart energy meter (c) a wind-up clock (d) a Wi-Fi doorbell camera
27. 27.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the board reads it (b) the app shows it (c) it is sent by Wi-Fi (d) the cloud stores it
28. 28.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔍 Which is the odd one out? (a) a paper calendar (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a Wi-Fi weather station
30. 30.🔍 Which is the odd one out? (a) a smart energy meter (b) a Wi-Fi doorbell camera (c) a Wi-Fi smart plug (d) a pencil sharpener
31. 31.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
32. 32.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 30 readings take?
33. 33.🔢 To get a sensor reading onto a phone, which is the FIRST step? (a) it is sent by Wi-Fi (b) the cloud stores it (c) the sensor measures (d) the board reads it
34. 34.Which of these is an IoT device? (a) a fitness band with app (b) a wind-up clock (c) a battery torch (d) a pencil sharpener
35. 35.🌐 In an IoT system, which part shows data to you? (a) phone app (b) cloud server (c) actuator (d) sensor
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 180 readings take?
37. 37.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “the cloud stores it”? (a) the board reads it (b) the cloud stores it
38. 38.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
39. 39.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 3 hours?
40. 40.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?

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