Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 741 · 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.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 9 minutes?
2. 2.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 1 hour?
3. 3.🌐 In an IoT system, which part stores data online? (a) phone app (b) sensor (c) microcontroller (d) cloud server
4. 4.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 70 readings take?
5. 5.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) sensor (c) microcontroller (d) actuator
6. 6.🔢 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
7. 7.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
8. 8.🌐 In an IoT system, which part carries the data? (a) microcontroller (b) actuator (c) Wi-Fi (d) sensor
9. 9.What does the cloud server do? (a) measures the real world (b) stores data online (c) shows data to you (d) carries the data
10. 10.🌐 In an IoT system, which part reads values, decides? (a) Wi-Fi (b) actuator (c) microcontroller (d) cloud server
11. 11.Which of these is not an IoT device? (a) a fitness band with app (b) a smart energy meter (c) a plain table fan (d) a Wi-Fi doorbell camera
12. 12.🔍 Which is the odd one out? (a) a fitness band with app (b) a Wi-Fi weather station (c) a Wi-Fi smart plug (d) a plain wall switch
13. 13.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
14. 14.🔢 To get a sensor reading onto a phone, which comes first: “the app shows it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the app shows it
15. 15.Which of these is not an IoT device? (a) a fitness band with app (b) a Wi-Fi weather station (c) a paper calendar (d) a Wi-Fi doorbell camera
16. 16.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 170 readings take?
17. 17.🔍 Which is the odd one out? (a) a smart energy meter (b) a pencil sharpener (c) a fitness band with app (d) a Wi-Fi smart plug
18. 18.🏠 Which is a smart-home example? (a) a candle in a jar (b) lights on from an app (c) a hand fan (d) a printed map
19. 19.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 5 hours?
20. 20.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 200 readings take?
21. 21.🔢 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
22. 22.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 6 hours?
23. 23.🌐 Is a Wi-Fi doorbell camera an IoT device? (a) not an IoT device (b) an IoT device
24. 24.🔍 Which is the odd one out? (a) a plain table fan (b) a Wi-Fi smart plug (c) a plain wall switch (d) a battery torch
25. 25.What does the microcontroller do? (a) stores data online (b) measures the real world (c) reads values, decides (d) carries the data
26. 26.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 8 minutes?
27. 27.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 5 hours?
28. 28.🌐 Is a paper calendar an IoT device? (a) not an IoT device (b) an IoT device
29. 29.🔢 To get a sensor reading onto a phone, which comes first: “the cloud stores it” or “the app shows it”? (a) the app shows it (b) the cloud stores it
30. 30.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 2 hours?
31. 31.🌐 What does IoT stand for? (a) Internet of Talk (b) Input of Tools (c) Inside of Toys (d) Internet of Things
32. 32.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) cloud server (c) Wi-Fi (d) phone app
33. 33.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 3 hours?
34. 34.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 4 minutes?
35. 35.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the app shows it (b) the board reads it (c) the cloud stores it (d) it is sent by Wi-Fi
36. 36.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 20 readings take?
37. 37.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 7 minutes?
38. 38.🔍 Which is the odd one out? (a) a plain wall switch (b) a wind-up clock (c) an app-controlled bulb (d) a paper calendar
39. 39.🔍 Which is the odd one out? (a) a Wi-Fi smart plug (b) a Wi-Fi doorbell camera (c) a battery torch (d) an app-controlled bulb
40. 40.Which of these is an IoT device? (a) a Wi-Fi smart plug (b) a plain wall switch (c) a paper calendar (d) a wind-up clock

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