Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 883 · 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.🌐 What does IoT stand for? (a) Internet of Things (b) Internet of Talk (c) Inside of Toys (d) Input of Tools
2. 2.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 120 readings take?
3. 3.🌐 In an IoT system, which part shows data to you? (a) Wi-Fi (b) microcontroller (c) phone app (d) sensor
4. 4.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 2 minutes?
5. 5.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 4 hours?
6. 6.🌐 Is a battery torch an IoT device? (a) an IoT device (b) not an IoT device
7. 7.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a fitness band with app (c) a battery torch (d) an app-controlled bulb
8. 8.What does the phone app do? (a) shows data to you (b) acts on a command (c) stores data online (d) measures the real world
9. 9.🔢 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
10. 10.🌐 Each reading a sensor sends is 10 bytes. How many bytes do 50 readings take?
11. 11.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 150 readings take?
12. 12.Which of these is not an IoT device? (a) a fitness band with app (b) an app-controlled bulb (c) a plain table fan (d) a smart energy meter
13. 13.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a plain wall switch (d) a Wi-Fi smart plug
14. 14.Which of these is an IoT device? (a) a wind-up clock (b) a Wi-Fi weather station (c) a plain table fan (d) a paper calendar
15. 15.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
16. 16.🌐 Each reading a sensor sends is 25 bytes. How many bytes do 90 readings take?
17. 17.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 8 minutes?
18. 18.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 4 hours?
19. 19.What does the actuator do? (a) reads values, decides (b) stores data online (c) acts on a command (d) carries the data
20. 20.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 2 hours?
21. 21.🌐 Is a fitness band with app an IoT device? (a) not an IoT device (b) an IoT device
22. 22.🌐 A weather station sends one reading every 20 seconds. How many readings does it send in 2 minutes?
23. 23.🌐 In an IoT system, which part stores data online? (a) cloud server (b) Wi-Fi (c) microcontroller (d) sensor
24. 24.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
25. 25.What does the Wi-Fi link do? (a) acts on a command (b) carries the data (c) stores data online (d) shows data to you
26. 26.What does the microcontroller do? (a) acts on a command (b) carries the data (c) reads values, decides (d) stores data online
27. 27.🔢 To get a sensor reading onto a phone, what comes right after “the sensor measures”? (a) the cloud stores it (b) the app shows it (c) it is sent by Wi-Fi (d) the board reads it
28. 28.🔢 To get a sensor reading onto a phone, which comes first: “the board reads it” or “it is sent by Wi-Fi”? (a) it is sent by Wi-Fi (b) the board reads it
29. 29.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi weather station (c) a wind-up clock (d) a smart energy meter
30. 30.What does the cloud server do? (a) carries the data (b) shows data to you (c) stores data online (d) reads values, decides
31. 31.🌐 In an IoT system, which part carries the data? (a) sensor (b) cloud server (c) Wi-Fi (d) microcontroller
32. 32.Which of these is not an IoT device? (a) a Wi-Fi doorbell camera (b) a smart energy meter (c) a fitness band with app (d) a plain wall switch
33. 33.🏠 Which is a smart-home example? (a) a printed map (b) a hand fan (c) lights on from an app (d) a candle in a jar
34. 34.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 8 minutes?
35. 35.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 30 readings take?
36. 36.What does the sensor do? (a) reads values, decides (b) measures the real world (c) carries the data (d) stores data online
37. 37.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
39. 39.🌐 Is a paper calendar an IoT device? (a) an IoT device (b) not an IoT device
40. 40.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 50 readings take?

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