Electronics Worksheet: What Is IoT

Electronics lesson 27: What is IoT? · Set 796 · 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.🌐 Each reading a sensor sends is 20 bytes. How many bytes do 20 readings take?
2. 2.Which of these is an IoT device? (a) a pencil sharpener (b) a fitness band with app (c) a wind-up clock (d) a paper calendar
3. 3.Which of these is an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a plain table fan (d) a plain wall switch
4. 4.What does the phone app do? (a) reads values, decides (b) carries the data (c) stores data online (d) shows data to you
5. 5.🔍 Which is the odd one out? (a) a Wi-Fi doorbell camera (b) a Wi-Fi smart plug (c) a smart energy meter (d) a paper calendar
6. 6.What does the Wi-Fi link do? (a) stores data online (b) carries the data (c) reads values, decides (d) shows data to you
7. 7.Which of these is an IoT device? (a) a plain table fan (b) a paper calendar (c) a battery torch (d) a Wi-Fi doorbell camera
8. 8.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 2 minutes?
9. 9.🌐 A weather station sends one reading every 10 seconds. How many readings does it send in 6 minutes?
10. 10.🌐 A soil sensor sends a reading to an app every 5 minutes. How many readings arrive in 1 hour?
11. 11.Which of these is not an IoT device? (a) a plain wall switch (b) a Wi-Fi smart plug (c) a Wi-Fi weather station (d) an app-controlled bulb
12. 12.🌐 How does a home IoT device usually send its data to the app? (a) by post (b) through a candle (c) over Wi-Fi (d) by shouting
13. 13.🌐 A soil sensor sends a reading to an app every 15 minutes. How many readings arrive in 3 hours?
14. 14.🌐 What does IoT stand for? (a) Internet of Things (b) Input of Tools (c) Inside of Toys (d) Internet of Talk
15. 15.🌐 In an IoT system, which part shows data to you? (a) microcontroller (b) phone app (c) actuator (d) sensor
16. 16.What does the cloud server do? (a) measures the real world (b) reads values, decides (c) stores data online (d) acts on a command
17. 17.🌐 Is a Wi-Fi weather station an IoT device? (a) an IoT device (b) not an IoT device
18. 18.What does the sensor do? (a) shows data to you (b) stores data online (c) carries the data (d) measures the real world
19. 19.Which of these is not an IoT device? (a) a smart energy meter (b) a wind-up clock (c) a Wi-Fi weather station (d) a Wi-Fi smart plug
20. 20.Which of these is not an IoT device? (a) a battery torch (b) a smart energy meter (c) an app-controlled bulb (d) a Wi-Fi smart plug
21. 21.🔢 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) the app shows it (d) it is sent by Wi-Fi
22. 22.🌐 A weather station sends one reading every 60 seconds. How many readings does it send in 5 minutes?
23. 23.🌐 A weather station sends one reading every 5 seconds. How many readings does it send in 10 minutes?
24. 24.🌐 A soil sensor sends a reading to an app every 10 minutes. How many readings arrive in 1 hour?
25. 25.🌐 Each reading a sensor sends is 50 bytes. How many bytes do 190 readings take?
26. 26.🌐 In an IoT system, which part carries the data? (a) sensor (b) Wi-Fi (c) cloud server (d) microcontroller
27. 27.What does the microcontroller do? (a) carries the data (b) stores data online (c) reads values, decides (d) acts on a command
28. 28.🌐 In an IoT system, which part measures the real world? (a) cloud server (b) Wi-Fi (c) sensor (d) microcontroller
29. 29.🌐 Is an app-controlled bulb an IoT device? (a) an IoT device (b) not an IoT device
30. 30.Which of these is an IoT device? (a) a paper calendar (b) a plain table fan (c) a Wi-Fi weather station (d) a pencil sharpener
31. 31.What does the actuator do? (a) acts on a command (b) measures the real world (c) stores data online (d) reads values, decides
32. 32.🔍 Which is the odd one out? (a) an app-controlled bulb (b) a battery torch (c) a Wi-Fi doorbell camera (d) a fitness band with app
33. 33.🔍 Which is the odd one out? (a) a pencil sharpener (b) a Wi-Fi weather station (c) a smart energy meter (d) a Wi-Fi doorbell camera
34. 34.🌐 In an IoT system, which part reads values, decides? (a) sensor (b) Wi-Fi (c) phone app (d) microcontroller
35. 35.🌐 Is a smart energy meter an IoT device? (a) not an IoT device (b) an IoT device
36. 36.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 5 minutes?
37. 37.🌐 Is a wind-up clock an IoT device? (a) not an IoT device (b) an IoT device
38. 38.🌐 A weather station sends one reading every 30 seconds. How many readings does it send in 6 minutes?
39. 39.🌐 A soil sensor sends a reading to an app every 20 minutes. How many readings arrive in 6 hours?
40. 40.🌐 A soil sensor sends a reading to an app every 30 minutes. How many readings arrive in 4 hours?

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