Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 464 · 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 is the FIRST step? (a) the sensor measures (b) the cloud stores it (c) it is sent by Wi-Fi (d) the app shows it
2. 2.Which of these is an IoT device? (a) a fitness band with app (b) a plain table fan (c) a paper calendar (d) a pencil sharpener
3. 3.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 90 readings take?
4. 4.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 180 readings take?
5. 5.🌐 Is a plain table fan an IoT device? (a) not an IoT device (b) an IoT device
6. 6.🌐 In an IoT system, which part shows data to you? (a) sensor (b) actuator (c) phone app (d) Wi-Fi
7. 7.🔍 Which is the odd one out? (a) a fitness band with app (b) a pencil sharpener (c) an app-controlled bulb (d) a smart energy meter
8. 8.What does the Wi-Fi link do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
9. 9.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 3 hours?
10. 10.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the cloud stores it”? (a) the cloud stores it (b) it is sent by Wi-Fi
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 170 readings take?
12. 12.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 60 readings take?
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 3 minutes?
14. 14.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the board reads it (b) it is sent by Wi-Fi (c) the app shows it (d) the cloud stores it
15. 15.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 140 readings take?
16. 16.🏠 Which is a smart-home example? (a) lights on from an app (b) a candle in a jar (c) a hand fan (d) a printed map
17. 17.What does the sensor do? (a) acts on a command (b) carries the data (c) measures the real world (d) shows data to you
18. 18.🌐 In an IoT system, which part measures the real world? (a) actuator (b) sensor (c) Wi-Fi (d) microcontroller
19. 19.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 1 minute?
20. 20.🔍 Which is the odd one out? (a) a plain table fan (b) a pencil sharpener (c) a plain wall switch (d) a Wi-Fi doorbell camera
21. 21.What does the cloud server do? (a) acts on a command (b) measures the real world (c) stores data online (d) carries the data
22. 22.🌐 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
23. 23.🌐 Is a Wi-Fi smart plug an IoT device? (a) not an IoT device (b) an IoT device
24. 24.Which of these is not an IoT device? (a) a paper calendar (b) a Wi-Fi smart plug (c) an app-controlled bulb (d) a Wi-Fi weather station
25. 25.🔢 To get a sensor reading onto a phone, which comes first: “it is sent by Wi-Fi” or “the app shows it”? (a) it is sent by Wi-Fi (b) the app shows it
26. 26.🔢 To get a sensor reading onto a phone, which is the LAST step? (a) the sensor measures (b) the cloud stores it (c) the board reads it (d) the app shows it
27. 27.Which of these is an IoT device? (a) an app-controlled bulb (b) a pencil sharpener (c) a battery torch (d) a paper calendar
28. 28.🌐 In an IoT system, which part stores data online? (a) Wi-Fi (b) sensor (c) microcontroller (d) cloud server
29. 29.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 7 minutes?
30. 30.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 130 readings take?
31. 31.🌐 What does IoT stand for? (a) Input of Tools (b) Internet of Talk (c) Inside of Toys (d) Internet of Things
32. 32.🌐 Is a fitness band with app an IoT device? (a) an IoT device (b) not an IoT device
33. 33.🌐 Is a battery torch an IoT device? (a) not an IoT device (b) an IoT device
34. 34.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 2 hours?
35. 35.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
36. 36.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
37. 37.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi doorbell camera (c) a smart energy meter (d) a plain wall switch
38. 38.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
39. 39.🔍 Which is the odd one out? (a) a plain table fan (b) an app-controlled bulb (c) a smart energy meter (d) a Wi-Fi weather station
40. 40.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?

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